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  2. Windows XP Professional x64 Edition - Wikipedia

    en.wikipedia.org/wiki/Windows_XP_Professional_x...

    A machine running Windows XP Professional x64 Edition cannot be directly upgraded to Windows Vista because the 64-bit Vista DVD mistakenly recognizes XP x64 as a 32-bit system. Windows XP x64 does qualify the customer to use an upgrade copy of Windows Vista or Windows 7, however it must be installed as a clean install.

  3. List of Microsoft Windows versions - Wikipedia

    en.wikipedia.org/wiki/List_of_Microsoft_Windows...

    Tablet computer running a "Tablet PC Edition" of Windows XP. Two versions of Windows XP were released that were optimized for tablets. Beginning with Windows Vista, all tablet-specific components were included in the main version of the operating system.

  4. Comparison of Windows Vista and Windows XP - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_Windows...

    A paper evaluating the performance of Windows operating systems concluded that Windows Vista did not provide a better overall performance on the high-end computer system compared to Windows XP. Some performance improvements could be seen in memory management and graphics display, but other parts of OS have equal or lower performance than ...

  5. Virtual PC - Wikipedia

    en.wikipedia.org/wiki/Virtual_PC

    Applications running in Windows XP Mode do not have compatibility issues, as they are actually running inside a Windows XP virtual machine and redirected using RDP to the Windows 7 host. Windows XP Mode may be used to run 16-bit applications; it includes NTVDM, however it is impossible to run 16-bit applications that require hardware ...

  6. Windows on Windows - Wikipedia

    en.wikipedia.org/wiki/Windows_on_Windows

    Many 16-bit Windows legacy programs can run without changes on newer 32-bit editions of Windows. The reason designers made this possible was to allow software developers time to remedy their software during the industry transition from Windows 3.1 to Windows 95 and later, without restricting the ability for the operating system to be upgraded to a current version before all programs used by a ...

  7. Windows NT 4.0 - Wikipedia

    en.wikipedia.org/wiki/Windows_NT_4.0

    Windows NT 4.0 is a major release of the Windows NT operating system developed by Microsoft and oriented towards businesses. It is the direct successor to Windows NT 3.51, and was released to manufacturing on July 31, 1996, [1] and then to retail in August 24, 1996, with the Server versions released to retail in September 1996.

  8. Development of Windows Vista - Wikipedia

    en.wikipedia.org/wiki/Development_of_Windows_Vista

    The development of Windows Vista (codenamed Longhorn) began in May 2001, [1] prior to the completion of Microsoft's Windows XP operating system, and continued until November 8, 2006, when it was released to manufacturing. Windows Vista was then released generally to retail on January 30, 2007.

  9. Comparison of Microsoft Windows versions - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_Microsoft...

    Windows Embedded Compact (Windows CE) is a discontinued variation of Microsoft's Windows operating system for minimalistic computers and embedded systems. Windows CE was a distinctly different kernel, rather than a trimmed-down version of desktop Windows.