Windows Virtual PC (KB958559) will not install, "This update is not applicable to your computer."


  • Windows Virtual PC KB958559 never installs. It says "This update is not applicable to your computer." Here are my details...

    • Dell Inspiron M6400, Intel Core2 Duo T9550, Hardware Virtualization is present and has been enabled in bios which was updated recently
    • Windows 7 Ultimate 32-bit, build 7600.16539.x86fre.win7_gdr.100226-1909

    Any ideas? I have seen the other posts but nothing seemed to be a solution. Another strange behavior that may (or may not) be related is that when I try to load the "Turn Windows features on or off" the box loads blank.

    Wednesday, May 26, 2010 6:56 PM


  • Try this

    Change the "RegisterySizeLimit"  value to unlimited. 

    Location of the key ...
    Key: RegistrySizeLimit
    Type: REG_DWORD
    Value: 0xffffff (4294967295)

    Reboot the machine.


    Try to install the patch

    Does this work?

    IM me - TWiTTer: @DFTER
    Thursday, May 27, 2010 2:28 PM

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