Windows 8 CPU Feature Patch (Bypass Windows 8 CPU feature checks)

Discussion in 'MDL Projects and Applications' started by Jan1, Aug 3, 2013.

  1. Jan1

    Jan1 MDL Novice

    May 20, 2010
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    #1 Jan1, Aug 3, 2013
    Last edited by a moderator: Apr 20, 2017
  2. Humphrey

    Humphrey MDL Expert

    Dec 13, 2011
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    Kaspersky Anti-Virus 2013 and Malwarebytes Anti-Malware Pro say this file(s) are clean- but do not take my/their word for it.

    Anyways, if this doesn't

    then why bother patching if its only going to lead to problems? Seems like a hassle.
     
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  3. FaiKee

    FaiKee Misinformation spreader

    Jul 24, 2009
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    There are quite a number of people on old CPUs, they may wish to try out win8/win8.1 to see if they like it(then buy a new PC); this would help them to test-run and decide. Many people have said and @Jan1 has emphasized: don't use it as your main OS. :D
     
  4. murphy78

    murphy78 MDL DISM Enthusiast

    Nov 18, 2012
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    This is an interesting project, but can you tell me what problem it actually solves?
    What cpu is unable to load win8?
    Someone using an old cyrix chip trying to load win8?
     
  5. OskarTDI

    OskarTDI MDL Novice

    Aug 15, 2012
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    That would interest me sometimes, how do you exactly the patching?


    Since one can make a small Tut?
     
  6. pisthai

    pisthai Imperfect Human

    Jul 29, 2009
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    Older P4's as an example!!
     
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  7. anarchist9027

    anarchist9027 MDL Expert

    Oct 30, 2010
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    Its so sad, the older higher end P4's are still up to par with todays CPU's for moderate work!!
     
  8. jackmonter5

    jackmonter5 MDL Senior Member

    Jul 27, 2009
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    Thanks for the great tool. i am having trouble finding a graphics driver for intel 915 (the hacks i found work for Windows 7 but fail for Win8) anyobe know a workaround? since i don't have a graphics driver there's no sleep or hibernate.

    Thanks!
     
  9. PaulDesmond

    PaulDesmond MDL Magnet

    Aug 6, 2009
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    lol ... only workaround for intel crap is to wait until them wake up. it is a mess since a while
     
  10. dummekuehe

    dummekuehe MDL Senior Member

    Jan 11, 2009
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    My good old IBM T42 is going to run Windows 8 in a while. ^^
     
  11. jackmonter5

    jackmonter5 MDL Senior Member

    Jul 27, 2009
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    Na problem is it never sleeps, so no waking involved :druff:
     
  12. moderate

    moderate MDL Guru

    Aug 31, 2009
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    It isn't so simple:
    For example, if you will patch only NX (majority of iP4 compatibility problems), Windows 8 will find out by other mechanisms correctly, that NX isn't available and the settings of DEP in \Control panels\System will be grayed out and inactive. IMHO in this case, there is no reason for BSOD (patching NX is 100% safe).

    View attachment 22958

    If the CPU hasn't PAE and SSE2, it means, that it is VERY old and Windows 8 will run so slowly, that they can't be used anyway. (BTW: patching SSE2 is VERY safe (99%), while IMHO patching PAE isn't safe).

    Patching CMPXCHG16B is feature for testing only since it is true, that it isn't safe.

    Key is, if Jan will be able to support future versions of DLLs (for example W8-1 RTM).

    On older notebooks, you will also face missing XPDM graphic driver model in W8, so you have to try to find WDDM v1-x drivers from vendor or use "Standard VGA WDDM v1-2" driver (BTW: I have hibernation and wake up support with it on my ancient nb).
     
  13. Pr3acher

    Pr3acher MDL Member

    Aug 24, 2012
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    Just why disabling some extremly important feature such as PatchGuard :eek: sounds crazy...
     
  14. disc4

    disc4 MDL Novice

    Apr 10, 2010
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    Awesome, thanks!

    So this should let me run 8 on my Athlon XP 2500+ ? (it was able to run the developer preview fine, but the final version chokes because of no nx bit)
     
  15. moderate

    moderate MDL Guru

    Aug 31, 2009
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    KB2859537 (W8-0 x32 Only) updates NTOSKRNL.EXE to version v6-2-9200-16659.
    Patch v1-4 will handle that.
     
  16. Supern00b

    Supern00b MDL Addicted

    Dec 30, 2010
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    I've just tested this.
    Someone here said that P4 Prescott runs Windows 8, but please take into account that not all Prescott will run W8.
    NX-bit was implemented in later P4 Prescott CPU's, not in the "A" Prescott's.

    So it was an old rig, P4 Prescott 2.4Ghz, 1MB L2 and 533Mhz FSB. 2GB RAM DDR.
    Board Intel D865PERL, videocard Geforce FX5200.
    Applied the W8 pro image from within some Win7 PE, patched both Winload and Ntoskrn files.
    Modified the bootstore so no signature nags, and off it went.

    I must say, it runs faster than anything I had on that rig before. It's just like getting a new PC, although this one has almost passed the 10 year mark.
    Definitely very happy with the result, not going back to W7.

    Cheers.
     
  17. FaiKee

    FaiKee Misinformation spreader

    Jul 24, 2009
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    Hopefully when win8.1 RTM is out, some guys would test and see if patch works for it too. :D
     
  18. FaiKee

    FaiKee Misinformation spreader

    Jul 24, 2009
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    Yup, and after that , "remove winload win8.1 X64 check", and then apply the BCDedit command to disable integrity check.