Internet Explorer 10

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Internet Explorer 10
Internet Explorer 10 start icon.svgInternet Explorer 10+11 computer icon.png
Internet Explorer 10 start screen tile in Windows 8 (left) and desktop icon (right)
Internet Explorer 10 (Windows 8 app).png
Internet Explorer 10 Metro app running in Windows 8, showing Wikipedia website.
Initial releaseSeptember 4, 2012; 7 years ago (2012-09-04)
Stable release10.0.46 (10.0.9200.22028) (December 13, 2016; 3 years ago (2016-12-13)) [±][1]
EngineTrident v6.0, Chakra
Operating systemWindows 7 SP1
Windows Server 2008 R2 SP1
PlatformIA-32, x64 and ARM
Included withWindows 8 and Windows Server 2012
Standard(s)HTML5, CSS3, H.264
TypeWeb browser
Feed aggregator[2]
LicenseProprietary, requires a Windows license[3]
Internet Explorer 10 Desktop app in Windows 8, showing Wikipedia website

Internet Explorer 10 (IE10) is the tenth version of the Internet Explorer web browser released by Microsoft in 2012, and is the default browser in Windows 8. IE10 expands on Internet Explorer 9 functionality with regard to CSS3 support, hardware acceleration,[5] and HTML5 support.

On Windows 8, it is divided into two editions with different user interfaces: a Metro app that does not support plug-ins and a traditional desktop application that retains plug-in support.[6] On 64-bit computers, the Metro edition runs in 64-bit mode by default.[7] The desktop edition can be run in 64-bit mode by enabling Enhanced Protected Mode.[8]

On April 12, 2011, Microsoft released the first "IE10 Platform Preview", which runs only on Windows 7 and later.[9][10] While the second platform preview was also available for Windows 7 and later, the next four platform previews ran only on Windows 8. The first preview release came four weeks after the final release of Internet Explorer 9.[11] IE10 reached general availability on September 4, 2012 as a component of Windows Server 2012. A preview of IE10 for Windows 7 was made available for download in November 2012.[12] On February 26, 2013, Internet Explorer 10 was made available for download to all Windows 7 SP1 users.

On January 12, 2016, support ended for IE10 on Windows operating systems capable of running Internet Explorer 11, due to new support policies dictating that only the newest version of IE available for a supported version of Windows will be supported. Currently, IE10 is only supported on Windows Server 2012[13][14] and Windows Embedded 8 Standard[15] and it will reach end of support on January 31, 2020. IE 11 was made available for Windows Server 2012 and Windows Embedded 8 Standard in Spring 2019.[16][17]


Internet Explorer 10 was first announced on April 12, 2011 at the MIX 11 conference in Las Vegas.[18] In this conference, Microsoft showcased a demo version of Internet Explorer 10 along with a demo version of Windows 8.[19] On the same day, a Platform Preview of Internet Explorer 10 was released on the Microsoft Internet Explorer Test Drive website.[5] It only supports Windows 7; later platform previews only support Windows 8.[20] Internet Explorer 10 Platform Preview 1 supports CSS3 grid layout, CSS3 flexible box layout, CSS3 multi-column layout, CSS3 gradient, and full hardware acceleration.[21][22]

Reviewers' responses to the release of Internet Explorer 10 Platform Preview were varied; however, they noted how soon (29 days) after the release of Internet Explorer 9 Microsoft began talking about the next version. While Don Reisinger of eWeek listed his requested features for the next version, Michael Muchmore of PC Magazine tested Platform Preview 1's performance and HTML5 support with both Microsoft's and third parties' test suites. In his test, Platform Preview 1 performed better than Internet Explorer 9 but not always better than the competing web browsers.[23][24]

On September 13, 2011, Microsoft released the developer preview of Windows 8 to general public, which came with Internet Explorer Developer Preview (the first full browser incarnation of Internet Explorer 10).[25] Although Internet Explorer is the last major web browser among Mozilla Firefox, Google Chrome, Opera, and Safari to support spell checking, it is the first desktop browser on Windows to support autocorrection.[26][27][28][29]

Internet Explorer 10 was released to manufacturing along with Windows 8 and Windows Server 2012. The latter reached general availability on September 4, 2012[30] while the former reached general availability on October 26, 2012. A preview of Internet Explorer 10 for Windows 7 and Windows Server 2008 R2 was released on November 13, 2012.[31][32] It is not compatible with previous versions of Windows.[33]

New features[edit]

Adobe Flash integration[edit]

On Windows 8, Internet Explorer 10 includes a built-in Adobe Flash Player.[34] Microsoft and Adobe worked together to ensure that the version of Adobe Flash included with Internet Explorer 10 does not drain the battery or impact performance in negative ways.[34] In the "Metro" version of Internet Explorer, only some of the features of Adobe Flash will be included for battery life, performance and security purposes.[35] Some features that do not work well with touch have also been removed from the "Metro" version of Internet Explorer. However, originally, not all websites can use Adobe Flash in the "Metro" version of Internet Explorer as Microsoft and Adobe maintain a list of approved websites that are, reportedly, video content and some games.[35] In the desktop version of Internet Explorer 10, all of the features of Adobe Flash are available.[35]
On March 12, 2013 Microsoft changed this behavior from allowing only sites on a whitelist to display flash content, to allowing all sites to display flash content except those on a curated Compatibility View (CV) list (blacklist) maintained by Microsoft.[36]

User interface[edit]

The desktop version of Internet Explorer 10 (available for Windows 7 and Windows 8) retains the user interface (UI) of Internet Explorer 9 with minor refinements, such as removing gradients. The Metro version of Internet Explorer 10 (available on Windows 8) includes a new UI, most of which is hidden so that the webpage being viewed takes up the entire screen.

The UI can be revealed by a right click of the mouse or by a swipe from the top or bottom edges of a touchscreen.[37] When the UI is shown, the tabs are listed on the top of the screen, with a small preview of the webpage on each tab. A button to add a new tab is placed in the top-right corner. At the bottom of the screen, the address bar and navigational buttons are shown. Navigational buttons include the Back button (to navigate to the previous page), the Refresh button (to reload active page), the Pin button (which create a new shortcut tile for the active page on the Start screen), and a wrench-shaped icon, which opens the only menu of IE10. It contains options such as "View on Desktop", which opens the current webpage on the desktop version of Internet Explorer 10, and "Find on page", which can find a text string (a word, phrase or arbitrary set of letters) in the active page.[37]

Flip Ahead[edit]

Internet Explorer 10 also introduces a new feature called Flip Ahead.[35] This works in both Metro and desktop versions of Internet Explorer 10. It allows users to move through articles that span multiple pages as well as search results and other web pages with a "next page" or similar button. This feature is turned off by default as a user's browsing history is sent to Microsoft in order to provide the feature.[34][35] According to the Windows SuperSite,[35] Microsoft has said that some sites may need to be updated to ensure it will work as intended.

Release history[edit]

Name New features
Internet Explorer 10 Platform Preview Support for CSS3 multi-column layout, CSS3 grid layout, CSS3 flexible box layout, CSS3 gradients, ES5 strict mode, and a new user agent string (see §User agent string).
Internet Explorer 10 Platform Preview 2 Support for Positioned Floats, CSS stylesheet limit lifted, CSSOM Floating Point Value support, Improved hit testing APIs, Media Query Listeners, HTML5: Support for async attribute on script elements, HTML5 Drag and Drop, HTML5 File API, HTML5 Sandbox, HTML5 Web Workers, and some Web Performance APIs.
Internet Explorer 10 Developer Preview Support for Windows 8, CSS 3D Transforms, CSS Text shadow, SVG Filter Effects, Spellchecking, Autocorrection, local storage with IndexedDB and the HTML5 Application Cache, Web Sockets, HTML5 History, and InPrivate tabs.
Internet Explorer 10 Platform Preview 4 Cross-Origin Resource Sharing, File API Writer, JavaScript Typed Arrays (WebGL), CSS user select property, HTML5 Video Text Captioning, and Updated Quirks Mode.
Internet Explorer 10 Consumer Preview Cross-Origin Resource Sharing (CORS) for XMLHttpRequest, CSS -ms-user-select property, CSS3 font-feature-settings property to access advanced OpenType features, Document setting to enable floating point values in CSS-OM, HTML5 BlobBuilder API and new APIs to save or open files, HTML5 track element for HTML5 video captions, Interoperable HTML5 Quirks mode, JavaScript Typed Arrays, Meta tag to alert user that site requires ActiveX add-ons available only in desktop IE10, removal of legacy graphics features from IE10 standards mode, changes to support latest HTML5 WebSocket API, and Web Worker thread pooling.[38]
Internet Explorer 10 Release Preview Removal of app switch button, new UI for search results, integration of touch-friendly Adobe Flash Player, Flip Ahead, "Do not track"-flag set by default,[39][40] removal of legacy DX filters from all of the document modes (can be re-enabled using the Internet Options dialog), and support for (CSS transitions, transforms, animations, gradients, and CSS Fonts’ font-feature-settings property, as well as platform APIs such as the Indexed Database API (IndexedDB) and requestAnimationFrame()) in their unprefixed forms, but still supports their prefixed forms.[41]
Internet Explorer 10 None.[42] Generally, there are no significant changes between a release candidate and release to manufacturing except bug fixes.

Discontinued features[edit]

Internet Explorer 10 no longer features or supports the following:[43]

Mobile version[edit]

At the Windows Phone Developer Summit in June 2012, Joe Belfiore announced Windows Phone 8 due towards the end of 2012, which will include a mobile version of Internet Explorer 10 that offers four times faster JavaScript performance and two times more support for HTML 5 features. It includes Microsoft SmartScreen and supports touch in HTML5 apps.[44]

User agent string[edit]

Internet Explorer 10 has a new user agent string which has the following general format:[45]

Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; [platform token] Trident/6.0; Touch)

Depending on the system, different parts of this user string may change. The last token, "Touch", only appears on systems equipped with a touchscreen. The platform token may be any of the following:

Platform token
Value Condition
Nothing Absence of the platform token indicates that Internet Explorer is running on a 32-bit version of Windows
WOW64; Indicates that a 32-bit version of Internet Explorer is running on a 64-bit version of Windows
Win64; x64; Indicates that a 64-bit version of Internet Explorer is running on a 64-bit version of Windows
ARM; Indicates that Internet Explorer 10 is running on Windows RT


A.^ Refers to the Internet Explorer (engine) version, not the Platform Preview version[46]:First screenshot
B.^ Platform Preview version is 2 October 1000.16394[47]
C.^ Platform Preview version is 2 October 1008.16421
D.^ This version is only included as part of Windows 8 Developer Preview, and is a full version rather than a usual Platform Preview.[25]
E.^ Platform Preview version is Does not replace Internet Explorer Developer Preview included in Windows 8.[48] This Platform Preview is compatible only with Windows Developer Preview.


  1. ^ "Microsoft Security Bulletin MS16-142 - Critical". Security TechCenter. Microsoft. November 8, 2016.
  2. ^ "Use RSS feed in Internet Explorer". Internet Explorer documentation. Microsoft. Retrieved December 15, 2012.
  3. ^ "Internet Explorer 10 Supplemental Microsoft Software License Terms". Microsoft. Retrieved July 26, 2013.
  4. ^
  5. ^ a b Hachamovitch, Dean (April 12, 2011). "Native HTML5: First IE10 Platform Preview Available for Download". IE Blog. Microsoft Corporation. Retrieved April 14, 2011.
  6. ^ Metro Version of IE 10 Will Be "Plugin Free"
  7. ^ Higman, Forbes (March 13, 2012). "Enhanced Memory Protections in IE10". IE Blog. Microsoft Corporation. Retrieved March 13, 2012.
  8. ^ Zeigler, Andy (March 14, 2012). "Enhanced Protected Mode". IE Blog. Microsoft Corporation. Retrieved October 31, 2012.
  9. ^ Keizer, Gregg (April 13, 2011). "Windows Vista: No IE10 for you". Computerworld. Computerworld Inc. Retrieved April 21, 2011. When Vista users try to install the IE10 preview, they see a dialog box that reads, "Windows Internet Explorer Platform Preview does not support any operating system earlier than Windows 7," after which the installation process terminates.
  10. ^ Muchmore, Michael (April 15, 2011). "Internet Explorer 10 drops Vista support". PC Magazine. Ziff Davis, Inc. Retrieved April 21, 2011.
  11. ^ Bertolucci, Jeff (April 12, 2011). "Internet Explorer 10 Platform Preview: Check It Out". PC World. IDG. Retrieved April 14, 2011.
  12. ^ "IE10 on Windows 7 available in November". IEBlog. Retrieved December 9, 2015.
  13. ^ "Nearly 370M IE users have just 6 weeks to upgrade". Computerworld. IDG. Retrieved December 12, 2015.
  14. ^ "Beginning January 12, 2016, only the most current version of Internet Explorer available for a supported operating system will receive technical support and security updates".
  15. ^ "Internet Explorer Support Lifecycle Policy FAQ". Microsoft Lifecycle Support Website. Retrieved April 10, 2016.
  16. ^ Tung, Liam. "Microsoft makes final push to rid world of Internet Explorer 10". ZDNet. Retrieved March 13, 2019.
  17. ^ "Lifecycle FAQ". Retrieved February 1, 2019.
  18. ^ Hachamovitch, Dean (April 12, 2011). MIX11 Day 1 Keynotes. Channel 9. Microsoft Corporation. Retrieved April 15, 2011.
  19. ^ Valich, Theo (April 12, 2011). "Microsoft Runs Windows 8, Internet Explorer 10 on nVidia Tegra / ARM CPU". Bright Side Of News. Retrieved April 14, 2011.
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  21. ^ Wilson, Dean (April 13, 2011). "Microsoft launches Internet Explorer 10 preview". The Inquirer. Incisive Media Investments Limited. Retrieved April 14, 2011.
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  24. ^ Reisinger, Don (April 13, 2011). "Microsoft Internet Explorer 10 Design: 10 Essential Features". eWeek. Ziff Davis Enterprise Holdings Inc. Retrieved April 14, 2011.
  25. ^ a b Hachamovitch, Dean (September 13, 2011). "Windows Developer Preview: The Third IE10 Platform Preview". IEBlog. MSDN Blogs. Retrieved December 2, 2011.
  26. ^ Leithead, Travis (November 8, 2011). "Typing with Speed and Accuracy in IE10". IEBlog. Microsoft Corporation. MSDN Blogs. Retrieved January 2, 2012. Spellchecking is an IE10 feature; while it is seamlessly integrated into Windows 8, we want to ensure that all users of IE10 benefit from this feature, including our users of IE10 on Windows 7.
  27. ^ Foley, Mary Jo (November 8, 2011). "Microsoft Internet Explorer 10 to add spell checking, auto-correct". ZDNet. CBS Interactive. Retrieved January 2, 2012.
  28. ^ Oiaga, Marius (November 9, 2011). "Internet Explorer 10 (IE10) on Windows 8 Spellcheck and Auto-Correct". Softpedia. SoftNews Net SRL. Retrieved January 2, 2012.
  29. ^ Brinkmann, Martin (November 10, 2011). "Spellchecking in Internet Explorer 10, Test It Now". Retrieved January 2, 2012.
  30. ^ "Windows Server 2012 released to manufacturing!". Windows Server blog. Microsoft. August 1, 2012. Retrieved October 20, 2012.
  31. ^ "Windows Internet Explorer 10 Pre-release for Windows 7". Download Center. Microsoft. November 12, 2012. Retrieved November 14, 2012.
  32. ^ "Windows Internet Explorer 10 Pre-release for Windows Server 2008 R2". Download Center. Microsoft. November 12, 2012. Retrieved November 14, 2012.
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  34. ^ a b c Steven Sinofsky; Rob Mauceri (June 1, 2012). "Web browsing in Windows 8 Release Preview with IE10". Building Windows 8. Retrieved August 26, 2012.
  35. ^ a b c d e f Paul Thurrott (May 31, 2012). "Windows 8 Release Preview: Changes to Internet Explorer 10". Paul Thurrott’s Windows Supersite. Retrieved August 26, 2012.
  36. ^
  37. ^ a b Muchmore, Michael (November 13, 2012). "Internet Explorer 10's Touch-Centric User Interface". PC Magazine. p. 1. Retrieved December 31, 2012.
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  40. ^ Dean Hachamovitch; Corporate Vice President; Internet Explorer (June 1, 2012). "Windows Release Preview: The Sixth IE10 Platform Preview".
  41. ^ "Legacy DX Filters Removed from IE10 Release Preview". IEBlog. June 2, 2012. Retrieved June 13, 2012.
  42. ^ Gavin, Ryan (October 26, 2012). "Internet Explorer 10 Now Available with Windows 8". Exploring IE blog. Microsoft. Archived from the original on October 28, 2012. Retrieved October 26, 2012.
  43. ^ "Internet Explorer 10 Compatibility Cookbook (Windows)". MSDN. Microsoft. October 1, 2012. Retrieved November 28, 2012.
  44. ^ O'Brien, Terrence (June 20, 2012). "Microsoft unveils Internet Explorer 10 for Windows Phone, very similar to the desktop". Engadget. Retrieved August 26, 2012.
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  48. ^ Mauceri, Rob. "HTML5 for Applications: The Fourth IE10 Platform Preview". IEBlog. Microsoft Corporation. MSDN Blogs. Retrieved November 29, 2011.

External links[edit]