Windows XP

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Windows XP
File:Microsoft Windows XP Logo.svg
Screenshot of Windows XP
DeveloperMicrosoft
OS familyMicrosoft Windows
Source modelClosed source, Shared source[1]
Released to
manufacturing		25 October 2001
Latest release5.1.2600.5512 Service Pack 3 (x86 SP3) / 21 April 2008 (2008-04-21)[2]
Platformsx86, x86-64, IA-64
Kernel typeHybrid
LicenseMS-EULA
Official websiteWindows XP: Homepage
Support status
Mainstream support (only with Service Pack 2 and 3)
Articles in the series

Windows XP is a line of operating systems produced by Microsoft for use on personal computers, including home and business desktops, notebook computers, and media centers. The name "XP" stands for eXPerience.[3] Windows XP is the successor to both Windows 2000 Professional and Windows Me, and is the first consumer-oriented operating system produced by Microsoft to be built on the Windows NT kernel (version 5.1) and architecture. Windows XP was first released on 25 October 2001, and over 400 million copies were in use in January 2006, according to an estimate in that month by an IDC analyst.[4] It is succeeded by Windows Vista, which was released to volume license customers on 8 November 2006, and worldwide to the general public on 30 January 2007. Direct OEM and retail sales of Windows XP ceased on 30 June 2008, although it is still possible to obtain Windows XP from System Builders[5] (smaller OEMs who sell assembled computers) until 31 July 2009 or by purchasing Windows Vista Ultimate or Business and then downgrading to Windows XP.[6][7]

The most common editions of the operating system are Windows XP Home Edition, which is targeted at home users, and Windows XP Professional, which offers additional features such as support for Windows Server domains and two physical processors, and is targeted at power users, business and enterprise clients. Windows XP Media Center Edition has additional multimedia features enhancing the ability to record and watch TV shows, view DVD movies, and listen to music. Windows XP Tablet PC Edition is designed to run ink-aware applications built using the Tablet PC platform. Two separate 64-bit versions of Windows XP were also released, Windows XP 64-bit Edition for IA-64 (Itanium) processors and Windows XP Professional x64 Edition for x86-64. There is also Windows XP Embedded, a componentized version of the Windows XP Professional, and editions for specific markets such as Windows XP Starter Edition.

Windows XP is known for its improved stability and efficiency over the 9x versions of Microsoft Windows.[8][9] It presents a significantly redesigned graphical user interface, a change Microsoft promoted as more user-friendly than previous versions of Windows. New software management capabilities were introduced to avoid the "DLL hell" that plagued older consumer-oriented 9x versions of Windows.[10][11] It is also the first version of Windows to use product activation to combat software piracy, a restriction that did not sit well with some users and privacy advocates. Windows XP has also been criticized by some users for security vulnerabilities, tight integration of applications such as Internet Explorer 6 and Windows Media Player, and for aspects of its default user interface. Later versions with Service Pack 2, and Internet Explorer 7 addressed some of these concerns.

During development, the project was codenamed "Whistler", after Whistler, British Columbia, as many Microsoft employees skied at the Whistler-Blackcomb ski resort.[12]

As of the end of October 2008, Windows XP is the most widely used operating system in the world with a 68.11% market share, having peaked at 85% in December 2006.[13]

Cam

New and updated features

Main article: Features new to Windows XP

Windows XP introduced several new features to the Windows line, including:

  • Faster start-up and hibernation sequences
  • The ability to discard a newer device driver in favor of the previous one (known as driver rollback), should a driver upgrade not produce desirable results
  • A new, arguably more user-friendly interface, including the framework for developing themes for the desktop environment
  • Fast user switching, which allows a user to save the current state and open applications of their desktop and allow another user to log on without losing that information
  • The ClearType font rendering mechanism, which is designed to improve text readability on Liquid Crystal Display (LCD) and similar monitors
  • Remote Desktop functionality, which allows users to connect to a computer running Windows XP from across a network or the Internet and access their applications, files, printers, and devices
  • Support for most DSL modems and wireless network connections, as well as networking over FireWire, and Bluetooth.

User interface

Windows XP themes
Default Blue (Luna)
Windows Classic
XP Royale
The new start menu design
in the "Royale" theme.
File:Windows task grouping (Luna).png
The "task grouping" feature introduced in Windows XP.

Windows XP features a new task-based graphical user interface. The Start menu and search capability were redesigned and many visual effects were added, including:

  • A translucent blue selection rectangle in Explorer
  • Drop shadows for icon labels on the desktop
  • Task-based sidebars in Explorer windows ("common tasks")
  • The ability to group the taskbar buttons of the windows of one application into one button
  • The ability to lock the taskbar and other toolbars to prevent accidental changes
  • The highlighting of recently added programs on the Start menu
  • Shadows under menus (Windows 2000 had shadows under mouse pointers, but not menus)

Windows XP analyzes the performance impact of visual effects and uses this to determine whether to enable them, so as to prevent the new functionality from consuming excessive additional processing overhead. Users can further customize these settings.[14] Some effects, such as alpha blending (transparency and fading), are handled entirely by many newer video cards. However, if the video card is not capable of hardware alpha blending, performance can be substantially hurt, and Microsoft recommends the feature should be turned off manually.[15] Windows XP adds the ability for Windows to use "Visual Styles" to change the user interface. However, visual styles must be cryptographically signed by Microsoft to run. Luna is the name of the new visual style that ships with Windows XP, and is enabled by default for machines with more than 64 MiB of video RAM. Luna refers only to one particular visual style, not to all of the new user interface features of Windows XP as a whole. Some users "patch" the uxtheme.dll file that restricts the ability to use visual styles, created by the general public or the user, on Windows XP.[16]

In addition to the included Windows XP themes, there is one previously unreleased theme with a dark blue taskbar and window bars similar to Windows Vista titled "Royale Noir" available for download, albeit unofficially.[17] Microsoft officially released a modified version of this theme as the "Zune" theme, to celebrate the launch of its Zune portable media player in November 2006. The differences are only visual with a new glassy look along with a black taskbar instead of dark blue and an orange start button instead of green.[18] Additionally, the Media Center "Royale" theme, which was included in the Media Center editions, is also available to download for use on all Windows XP editions.[19]

The default wallpaper, Bliss, is a BMP photograph of a landscape in the Napa Valley outside Napa, California,[20] with rolling green hills and a blue sky with stratocumulus and cirrus clouds.

The Windows 2000 "classic" interface can be used instead if preferred. Several third party utilities exist that provide hundreds of different visual styles. Microsoft licensed technology from WindowBlinds creator Stardock to create its visual styles in XP.

System requirements

File:DesignedforWinXPlogo.PNG
Designed for Windows XP computer hardware logo

System requirements for Windows XP Home and Professional editions as follows:[21]

Minimum Recommended
Processor 233 MHzTemplate:Fn 300 MHz or higher
Memory 64 MB RAMTemplate:Fn 128 MB RAM or higher
Video adapter and monitor Super VGA (800 x 600) or higher resolution
Hard drive disk free space 1.5 GB or higher (additional 1.8 GB in SP2[22] and additional 900 MB in SP3[23])
Drives CD-ROM drive or DVD drive
Input devices Keyboard. Microsoft Mouse or compatible pointing device
Sound Sound card. Speakers or headphones

Template:FnbEven though this is Microsoft's stated minimum processor speed for Windows XP, it is possible to install the operating system on any computer with a compatible processor running at 100MHz or faster.[24][verification needed]

Template:FnbUsing 64 MB of RAM allows the user to complete simple tasks, such as browsing the web or reading email. The user's experience would be "equivalent or superior to that of Windows Me running on the same hardware."[25]

Service packs

Microsoft occasionally releases service packs for its Windows operating systems to fix problems and add features. Each service pack is a superset of all previous service packs and patches so that only the latest service pack needs to be installed, and also includes new revisions.[26] Older service packs need not be removed before application of the most recent one.

The service pack details below only apply to the 32-bit editions. Windows XP Professional x64 Edition was based on Windows Server 2003 Service Pack 1 and claimed to be "SP1" in system properties from the initial release. It is updated by the same service packs and hotfixes as the x64 edition of Windows Server 2003.

Service Pack 1

File:Windows XP - Program Access and Defaults.png
Set Program Access and Defaults was added in Service Pack 1.

Service Pack 1 (SP1) for Windows XP was released on 9 September 2002. It contains post-RTM security fixes and hot-fixes, compatibility updates, optional .NET Framework support, enabling technologies for new devices such as Tablet PCs, and a new Windows Messenger 4.7 version. The most notable new features were USB 2.0 support, and a Set Program Access and Defaults utility that aimed at hiding various middleware products. Users can control the default application for activities such as web browsing and instant messaging, as well as hide access to some of Microsoft's bundled programs. This utility was first brought into the older Windows 2000 operating system with its Service Pack 3. The Microsoft Java Virtual Machine, which was not in the RTM version, appeared in this service pack.[27] IPv6 support was also introduced.

On 3 February 2003, Microsoft released Service Pack 1a (SP1a). This release removed Microsoft's Java virtual machine as a result of a lawsuit with Sun Microsystems.[28]

Service Pack 2

Windows Security Center was added in Service Pack 2.

Service Pack 2 (SP2) (codenamed "Springboard") was released on 6 August 2004 after several delays, with a special emphasis on security.[29] Unlike the previous service packs, SP2 adds new functionality to Windows XP, including an enhanced firewall, improved Wi-Fi support, such as WPA encryption compatibility, with a wizard utility, a pop-up ad blocker for Internet Explorer 6, and Bluetooth support. The new welcome screen during the kernel boot removes the subtitles "Professional", "Home Edition" and "Embedded" since Microsoft introduced new Windows XP editions prior to the release of SP2. The green loading bar in Home Edition and the yellow one in Embedded were replaced with the blue bar, seen in Professional and other versions of Windows XP, making the boot-screen of operating systems resemble each other. Colours in other areas, such as Control Panel and the Help and Support tool, remain as before.

Service Pack 2 added new security enhancements, which include a major revision to the included firewall that was renamed to Windows Firewall and is enabled by default, Data Execution Prevention that takes advantage of the NX bit that is incorporated into newer processors to stop some forms of buffer overflow attacks, and removal of raw socket support (which supposedly limits the damage done by zombie machines). Additionally, security-related improvements were made to e-mail and web browsing. Windows XP Service Pack 2 includes the Windows Security Center, which provides a general overview of security on the system, including the state of anti-virus software, Windows Update, and the new Windows Firewall. Third-party anti-virus and firewall applications can interface with the new Security Center.[30]

On 10 August 2007, Microsoft announced a minor update to Service Pack 2, called Service Pack 2c (SP2c).[31] The update fixes the issue of the diminishing number of available product keys for Windows XP. This update will only be available to system builders from their distributors in Windows XP Professional and Windows XP Professional N operating systems. SP2c was released in September 2007.[32]

Service Pack 3

Windows XP Service Pack 3 (SP3) was released to manufacturing on 21 April 2008 and to the public via both the Microsoft Download Center and Windows Update on 6 May 2008.[33][34][35]

It began being automatically pushed out to Automatic Update users on 10 July 2008.[36] A feature set overview which details new features available separately as standalone updates to Windows XP, as well as backported features from Windows Vista has been posted by Microsoft.[37] A total of 1,174 fixes have been included in SP3.[38] Service Pack 3 can be installed on systems with Internet Explorer versions 6 or 7, and Windows Media Player versions 9 and above.[39] Internet Explorer 7 is not included as part of SP3.[40]

New features

Slipstreamed retail and OEM versions of Windows XP with SP3 can be installed and run with full functionality for 30 days without a product key, after which time the user will be prompted to enter a valid key and activate the installation. Volume license key (VLK) versions still require entering a product key before beginning installation.[44]

Although service packs have, until now, been cumulative, installing SP3 on an existing installation of Windows XP requires that the computer must at least be running with Service Pack 1 installed.[23] However, it is possible to slipstream SP3 into the Windows XP setup files at any service pack level—including the original RTM version—without any errors or issues.[45] Slipstreaming SP3 into Windows XP Media Center Edition 2005 is not supported.[46]

Service Pack 3 contains updates to the operating system components of Windows XP Media Center Edition (MCE) and Windows XP Tablet PC Edition, and security updates for .NET Framework version 1.0, which is included in these Windows XP SKUs. However, it does not include update rollups for the Windows Media Center application in Windows XP MCE 2005.[47] SP3 also omits security updates for Windows Media Player 10, although the player is included in Windows XP MCE 2005.[47] The Address Bar DeskBand on the Taskbar is no longer included due to legal restrictions.[48]

Problems

For computers with local hard drive size limitations (such as the Eee PC) the 1 GB of space required on the local hard drive during download and installation of the service pack is preventing installation and forcing unlimited downloading by the automatic updates, as the service pack is continuously redownloaded after each unsuccessful attempt. A workaround for this has been found, which involves downloading SP3 from the Microsoft download site and installing from an external drive,[49] then moving the ServicePackFiles folder to another drive and using Regedit to edit the Service Pack Source Path in the registry.[50]

On certain non-Intel machines, SP3 can trigger a stop error which prevents Windows from booting. This happens in cases where the manufacturer wrongly set up a non-Intel machine using an image from an Intel machine. As a result, a key in the registry incorrectly indicates an Intel processor, thus causing SP3 to erroneously attempt to load the intel driver during startup. Microsoft has posted multiple methods for resolving this problem.[51]

Support lifecycle

Support for Windows XP without a service pack ended on 30 September 2004[52] and support for Windows XP Service Pack 1 and 1a ended on 10 October 2006.[53][54]

Windows XP Service Pack 2 will be retired on 13 July 2010, almost six years after its general availability.[55] As per Microsoft's posted timetable, the company stopped general licensing of Windows XP to OEMs and terminated retail sales of the operating system on 30 June 2008, 17 months after the release of Windows Vista.[56][57] However, an exception was announced on 3 April 2008, for OEMs installing to subnotebooks or UMPCs either until 30 June 2010, or one year after the availability of the next client version of Windows, Windows 7—whichever date comes later.[58][59][60]

On 14 April 2009, Windows XP will begin its "Extended Support" period that will last for 5 years until 8 April 2014.[61]

Common criticisms

Main article: Criticism of Windows XP

Security issues

Windows XP has been criticized for its susceptibility to malware, viruses, trojan horses, and worms. Security issues are compounded by the fact that users, by default, receive an administrator account that provides unrestricted access to the underpinnings of the system. If the administrator's account is broken into, there is no limit to the control that can be asserted over the compromised PC.

Windows, with its large market share, has historically been a tempting target for virus creators. Security holes are often invisible until they are exploited, making preemptive action difficult. Microsoft has stated that the release of patches to fix security holes is often what causes the spread of exploits against those very same holes, as crackers figured out what problems the patches fixed, and then launch attacks against unpatched systems. Microsoft recommends that all systems have automatic updates turned on to prevent a system from being attacked by an unpatched bug, but some business IT departments need to test updates before deployment across systems to predict compatibility issues with custom software and infrastructure. This deployment turn-around time also lengthens the time that systems are left unsecure in the event of a released software exploit.

User interface performance

Critics have claimed that the default Windows XP user interface (Luna) adds visual clutter and wastes screen space while offering no new functionality and running more slowly. Users can switch back to the Windows Classic theme.[62]

Integration of operating system features

In light of the United States v. Microsoft case which resulted in Microsoft being found liable for abusing its operating system monopoly to overwhelm competition in other markets, Windows XP has drawn fire for integrating user applications such as Windows Media Player and Windows Messenger into the operating system, as well as for its close ties to the Windows Live ID service.

Backward compatibility

Some users switching from Windows 9x to XP disliked its lack of DOS support. Although XP comes with the ability to run DOS programs in a virtual DOS machine, it still has trouble running many old DOS programs. This is largely because it is a Windows NT system and does not use DOS as a base OS, and that the Windows NT architecture is different from Windows 9x. Some DOS programs that cannot run natively on XP, notably programs that rely on direct access to hardware, can be run in virtual machines, such as DOSBox, VMware, Microsoft Virtual PC or VirtualBox.

Product activation and verification

Product activation

In an attempt to reduce piracy Windows XP introduced product activation. Activation requires the computer or the user to activate with Microsoft (either online or over the phone) within a certain amount of time in order to continue using the operating system. If the user's computer system ever changes—for example, if two or more relevant components of the computer itself are upgraded—Windows will return to the unactivated state and will need to be activated again within a defined grace period. If a user tries to reactivate too frequently the system will refuse to activate online. The user must then contact Microsoft by telephone, to explain why this is happening, in order to obtain a new activation code.

However, activation only applies to retail and "system builder" (intended for use by small local PC builders) copies of Windows. "Royalty OEM" (used by large PC vendors) copies are instead locked to a special signature in the machines BIOS (and will demand activation if moved to a system whose motherboard does not have the signature) and volume license copies do not require activation at all. Predictably this led to pirates simply using volume license copies with volume license keys that were widely distributed on the internet.

Product key testing

In addition to activation, Windows XP service packs will refuse to install on Windows XP systems with product keys known to be widely used in unauthorized installations. These product keys are intended to be unique to each boxed (or bundled) copy of Windows XP and are included with the product documentation, but a number of product keys were posted on the Internet and were then used for a large number of unauthorized installations. The service packs contain a list of these keys and will not update copies of Windows XP that use them.

Microsoft developed a new key verification engine for Windows XP Service Pack 2 that could detect illicit keys, even those that had never been used before. After an outcry from security consultants who feared that denying security updates to illegal installations of Windows XP would have wide-ranging consequences even for legal owners, Microsoft elected to disable the new key verification engine. Service Pack 2 only checks for the same small list of commonly used keys as Service Pack 1. This means that while Service Pack 2 will not install on copies of Windows XP which use the older set of copied keys, those who use keys which have been posted more recently may be able to update their systems.

Windows Genuine Advantage

Main article: Windows Genuine Advantage
File:WGA Notifications.png
A Windows Genuine Advantage notification indicating a failed validation.

To try to curb piracy based on leaked or generated volume license keys, Microsoft introduced Windows Genuine Advantage (WGA). WGA comprises two parts, a verification tool which must be used to get certain downloads from Microsoft and a user notification system. WGA for Windows was followed by verification systems for Internet Explorer 7, Windows Media Player 11, Windows Defender, and Microsoft Office 2007. Recently Microsoft removed the WGA verification from the installer for Internet Explorer 7 saying that the purpose of the change was to make IE7 available to all Windows users.[63][64]

If the license key is judged not genuine, it displays a nag screen at regular intervals asking the user to buy a license from Microsoft.[65] In addition, the user's access to Microsoft Update is restricted to critical security updates, and as such, new versions of enhancements and other Microsoft products will no longer be able to be downloaded or installed. As of 26 August 2008, Microsoft has released a new WGA activation program that if your computer failed validation, it will change your desktop to a plain black background. You can, however change it back to your own personal desktop picture, but after 60 minutes the desktop will be reset back to the black background.[66]

Common criticisms of WGA have included its description as a "Critical Security Update", causing Automatic Updates to download it without user intervention, its behavior compared to spyware of "phoning home" to Microsoft every time the computer is connected to the Internet, the failure to inform end users what exactly WGA would do once installed (rectified by a 2006 update[67]), the failure to provide a proper uninstallation method during beta testing (users were given manual removal instructions that did not work with the final build[65]), and its sensitivity to hardware changes which cause repeated need for reactivation in the hands of some developers.

Strictly speaking, neither the download nor the install of the Notifications is mandatory; the user can change their Automatic Update settings to allow them to choose what updates may be downloaded for installation. If the update is already downloaded, the user can choose not to accept the supplemental EULA provided for the Notifications. In both cases, the user can also request that the update not be presented again. Newer Critical Security Updates may still be installed with the update hidden. However this setting will only have effect on the existing version of Notifications, so it can appear again as a new version. As of 2006, Microsoft is currently involved in a class action lawsuit brought forth in California, on grounds that it violated the spyware laws in the state with its Windows Genuine Advantage Notifications program.[68]

Protection 'cracking'

"Key generator" programs, commonly called "keygens", exist to randomly generate Windows XP product keys (thus, there are no longer any commonly used keys to block) and then activate Windows without contacting Microsoft. These may or may not allow the user to receive updates although Microsoft has allowed major security updates to be downloaded and applied through Windows Update and its downloads site, even in pirated or non-genuine copies of Windows.[69] In addition, a range of cracks and cracked versions of WGA exist, enabling a computer running a non-genuine copy of Windows to be detected as a genuine Windows system and access all Microsoft updates and enhancements.

License and media types

There are three main types of Windows XP licenses: Retail, Volume (VLK), and Original Equipment Manufacturer (OEM). All three types of licenses are available for Windows XP Professional (32-bit and 64-bit) and Windows XP Tablet PC Edition. Windows XP Home Edition is limited to Retail and OEM licenses whereas Windows XP Media Center Edition and Windows XP Tablet PC Edition are exclusively available through OEM licenses.

Each type of license has a different installation CD. For customized or retail media, there is a very tiny difference on each type of disc that will only allow that installation disc to accept one type of product key.

Only retail and volume licenses include support for end-user installation scenarios from Microsoft. OEM software is pre-installed on systems and is supported by the system manufacturer rather than Microsoft. The price of such software is reduced to aid computer manufacturers in reducing costs of their computer system production. The cost of OEM software products bundled with systems is not disclosed by Microsoft or by its partners as each system manufacturer will define its own bundling price. Microsoft does not support OEM licenses because it cannot guarantee compatibility with every system configuration possible and it is the responsibility of each system manufacturer to ensure that its hardware is compatible.

Microsoft recommends that system manufacturers have their systems tested, for a fee, as part of the Windows Quality Online Services (Winqual) which includes extensive testing so that no component will cause instability in the Windows operating system due to incompatibility with the Windows operating system or with other system components or their respective drivers. Having a system tested and approved will allow the manufacturer to bear the "Certified for Windows" logo sticker on the exterior of the system, and there are additional benefits for having a tested product. This includes the product's being listed on the Windows Marketplace. Because of the fees and extensive requirements, Microsoft acknowledges that smaller system manufacturers may not opt in to the program until they produce computer systems at a modest rate and on recurring designs.

Retail

Retail licenses, those purchased from a retail store in full packaging, are of two sub-types: "Upgrade" and "Full Purchase Product", often abbreviated by Microsoft as FPP. FPP licenses are transferable from one computer to another, provided the previous installation is removed from the old computer. Although upgrade licenses are also transferable, a user must have a previous version of Windows even on the new computer to which they are moving the installation. Retail licenses include installation support for end-users, provided directly by Microsoft.

Volume License

A Volume License is the license given to a software version sold to businesses under a direct purchase agreement with Microsoft, and is sold as an upgrade license only, meaning that a previous license must be available for each new volume license. Volume license versions of Windows XP use a Volume License Key (VLK) which is a product key that does not require Windows Product Activation. The term "Volume License Key" refers to the ability to use one product key for multiple systems, depending on the type of agreement. Since Windows XP Volume License versions do not require product activation, this led to leaked copies of VLK media and product keys from businesses leading to piracy of Windows XP which quickly spread across the internet upon early release. Beginning with Service Pack 1, Microsoft's active attempts to search out and blacklist known pirated VLK product keys became well known due to the inability to install the service pack on a system with one of the blacklisted keys. Later, this led to the Windows Genuine Advantage program.

Original Equipment Manufacturer (OEM)

Original Equipment Manufacturer (OEM) licenses are pre-installed on, and sold with, pre-assembled computers from system manufacturers. There are two types of OEM product types: those used for "Direct OEMs" (major name brands that buy through a direct contract with Microsoft and produce and brand their own media from a Microsoft "Gold Master Copy" by using an Authorized Microsoft Duplication Partner), and those used for "System Builders" (local computer shops that buy generic, unbranded kits through Authorized Microsoft Distributors). Direct OEM product keys will often not activate with System Builder installation media because Direct OEMs are now required by Microsoft to pre-activate their copies in the factory using their own internal mechanism before delivery to the customer. It is recommended that System Builders also pre-activate their systems before delivery, but this is not mandatory.

OEM installations can be customized using the Microsoft OEM Preinstallation Kit with branding, logos, additional applications, optional services, alternate applications for certain Windows components, Internet Explorer links, and various other customizations. All OEM customers must include support and contact information for the initial installation of Windows because it is the responsibility for the OEM to support the Windows installation, and is not provided by Microsoft to the end-user. Direct OEMs must create their own media, but have the option of creating their own custom recovery solution, which may or may not be similar to a generic installation. OEMs may provide a recovery partition on the hard drive as the custom recovery solution rather than providing disc-based media with the computer.

Some end-users have found this to be a troublesome option, because in the event of an out-of-warranty hard drive failure, they may not have access to reinstall Windows on a new hard drive. System Builders are not allowed the option to create a custom recovery CD/DVD media. The only deliverable media available for a System Builder to give to the end-user is the unbranded OEM System Builder hologram media kit. Because of this, when end-users reformat their hard drives and re-install from the installation media, they lose all the custom branding and support information that the System Builder would have included.

As a supplemental recovery method to a CD/DVD-based installation, a System Builder may employ a fully customized recovery solution on the hard drive. Whether utilizing a recovery partition or not, a System Builder must still include the original generic OEM System Builder hologram CD/DVD media kit. OEM licenses are not transferable from one computer to another. Every computer sold/resold with an OEM license must include all of the original installation media or recovery solution, documentation, Certificate of Authenticity, and product key sticker with the sale. Microsoft requires that all OEM system manufacturers include as part of the configuration the Windows Out-of-Box Experience (OOBE), which is the initial setup wizard encountered the first time Windows boots-up. It is also required that Value-Added Resellers (VAR's), retailers, and general resellers not tamper with the OEM's customized OOBE mechanism unless under permission by the OEM, and it is a recommended configuration for systems that are privately resold so that a customer will have a like-new computer experience upon first boot-up.

OEM licenses are to be installed by professional system manufacturers only. Under Microsoft's OEM License Agreement, they are not to be sold to end-users under any circumstance, and are to be pre-installed on a computer using the OEM Preinstallation Kit (OPK) before shipment to the customer, and must include at the very least the manufacturer's support contact information. They are therefore designed for installation only on a single computer and are not transferable, even if the original computer is no longer in use. This is not usually an issue for users who purchase new computer systems because most pre-assembled systems ship with a pre-installed operating system. There are few circumstances where Microsoft will allow the transfer of an OEM license from one non-functioning system to another, but the OEM System Builder License Agreement (SBLA), as well as the OEM End User License Agreement (EULA) do not contain any allowance for this, so it is entirely up to Microsoft's discretion, depending on the situation.[70]

Non-use by end-user

In the event that an end-user decides that they do not wish to use a pre-installed version of Windows, Microsoft's End User License Agreement (EULA) provides that the software may be returned to the OEM for a refund.[71] Despite refusal of some manufacturers to honor the entitlement it has been enforced by courts in some countries.[72][73]

See also

Literature/Books

  • Microsoft Windows XP Plain & Simple - J. Joyce and M. Moon, Microsoft Press, USA, 2005. ISBN 0-7356-2112-8

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External links

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