Windows 8 and 8.1 Forums


What hardware is really required?

  1. #1


    Posts : 17
    Windows 7 ultimate

    What hardware is really required?


    My system uses an Intel Pentium 4 CPU (3.00GHZ 2.99 GHz) with 3GB RAM
    I have been using Windows 7 Ultimate for a couple of years.
    On a seperate partition I had installed Windows 8 Consumer Preview which ran OK.
    Now I would like to replace this with a later (prerelease) version of W8 but I get a message saying:

    This PC can't run Windows 8 - Your PC's CPU isn't compatible with Windows 8.

    So, what hardware should one really have for Windows 8 ??

      My System SpecsSystem Spec

  2. #2


    Posts : 636
    Windows 7/8


    You need a CPU with the NX (no execute) capability. It goes by different names on different CPUs but generally "NX" or "NX bit" works when doing goggle searches about it. Such as "Does the Pentium 4 support the NX bit?"
      My System SpecsSystem Spec

  3. #3


    Posts : 17
    Windows 7 ultimate


    Thank you, but I do not really understand your response.

    But, I tried again, this time by booting from a DVD (rather than starting from within windows) and now the message did not come up and Windows8 installed OK.

    So, whatever, NX is, I either have it or the check was bypassed by booting.
      My System SpecsSystem Spec

  4. #4


    Posts : 1,925
    Windows 8.1 Pro


    You need to find out the exact model of CPU you have, download something like CPU-Z and it should tell you. CPU-Z should also tell you if it supports the NX bit.
      My System SpecsSystem Spec

  5. #5


    Redmond
    Posts : 651
    Windows 8.1 x64


    If it's a 5xx Pentium 4 "Prescott" LGA775 or older (and not a 5xxJ), it does not have NX or "XD", what Intel called it way back when. Some of the really late-to-the-game 5xx series P4s released in 2005/2006 had XD and were 64bit capable, but these weren't really all that common and most OEMs and retailers had started selling and using 6xx P4s at the time as they were cheaper, for the most part, especially in bulk.

    In reality, all we need to know is the model number, and whether or not it's a 64bit-capable CPU (all "Intel64"-capable CPUs can do XD or NX, even P4s).
      My System SpecsSystem Spec

  6. #6


    Posts : 1,925
    Windows 8.1 Pro


    Also, some systems have the NX bit disabled in the BIOS. Check your bios and make sure this is not the case.
      My System SpecsSystem Spec

  7. #7


    Posts : 17
    Windows 7 ultimate


    Click image for larger version

    This is my CPU, but as mentioned before, Windows 8 has been installed succesfully (I am actually using it right now), so I presume NX is installed and active.

    Thank you all for your good advices.
      My System SpecsSystem Spec

  8. #8


    Posts : 1,925
    Windows 8.1 Pro


    Yes, your CPU does have the NX bit. It sounds like something you had installed had disabled NX, which is why the upgrade did not work.
      My System SpecsSystem Spec

  9. #9


    United States
    Posts : 650
    Windows 8.1 Pro, iOS 7.1, Elementary OS


    Quote Originally Posted by pensionada View Post
    Click image for larger version

    This is my CPU, but as mentioned before, Windows 8 has been installed succesfully (I am actually using it right now), so I presume NX is installed and active.

    Thank you all for your good advices.
    Sorry about the commentary, but are you dual-booting? Windows RP will expire.
      My System SpecsSystem Spec

  10. #10


    Posts : 7
    Windows 8 RTM


    Any computer that could run Windows 7 smoothly without breaks, kinks can run Windows 8. Windows 8 Memory management is much better than Windows 7!
      My System SpecsSystem Spec

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