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I hope I haven't caught you in a bad time because I am here about a rather serious trend in your editing. It seems you have recently done a chain of edits that are banned by MOS:STABILITY. In Wikipedia, both "X64" and "x86-64" are allowed. Editors are free to use whichever they want and no one is allowed to convert a bulk of one to another. In fact, if you read the footnotes in MOS:STABILITY, you realize that people are previously blocked from editing for doing such edits.