Windows 8.1 Hotfix Repository

Discussion in 'Windows 8' started by komm, Aug 31, 2013.

  1. Apoly

    Apoly MDL Member

    Aug 21, 2016
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    #3741 Apoly, Sep 9, 2025
    Last edited: Sep 19, 2025
    IECU202509.png

    Eventhough the latest IE CU can technically still be installed on W8.1 Client, I wouldn't recommend it because some Client packages have been removed !
    It's only a matter of time before this leads to problems one way or another. It seems that it was already the case with the 2025-07 IE CU as well.

    This is the list of files that will not get updated when installing it on W8.1 Client :

    Code:
    System32 + SysWOW64 folders
    
    actxprxy.dll
    inetcomm.dll
    inetres.dll
    hlink.dll
    iertutil.dll
    jsproxy.dll
    msrating.dll
    urlmon.dll
    wininet.dll
    
    WininetPlugin.dll in
    System32\migration
    SysWOW64\migration
    
     
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  2. kkhww

    kkhww MDL Member

    Mar 15, 2021
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  3. Apoly

    Apoly MDL Member

    Aug 21, 2016
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    Sadly I believe they will not bring back Client compatibility.
    I have extensively compared the File Information of Monthly Rollup 2025-06 and 2025-07+

    For 2025-07+ they removed :

    Pretty much anything Bluetooth related
    Anything related to Infrared drivers
    Anything related to WorkFolders
    Anything related to Windows Defender
    Drivers for Mobile Broadband
    ClientESU Year 1,2,3 licenses
    Embedded and Entreprise licenses

    So it looks like they really intentionally wanted to cut down on non-Server related material o_O
     
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  4. abbodi1406

    abbodi1406 MDL KB0000001

    Feb 19, 2011
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    They even removed licenses for no-longer-supported Server editions

    clean slate :D
     
  5. fch1993

    fch1993 MDL Senior Member

    Mar 14, 2020
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    #3745 fch1993, Sep 13, 2025
    Last edited: Sep 13, 2025
    Where to find the list of no-longer-supported Server editions that have been removed?

    Windows Storage Server 2012 (R2) is removed?
     
  6. Apoly

    Apoly MDL Member

    Aug 21, 2016
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    #3746 Apoly, Sep 13, 2025
    Last edited: Sep 18, 2025
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  7. Apoly

    Apoly MDL Member

    Aug 21, 2016
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    Will have to re-test on real hardware then, it might have been a problem with Virtual Machine.
     
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  8. NewEraCracker

    NewEraCracker MDL Senior Member

    Apr 19, 2011
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    #3749 NewEraCracker, Sep 13, 2025
    Last edited: Sep 14, 2025
    Hi,
    BitLocker too (previously part of SecureStartup), at least just by looking at changes from 2025-06 to 2025-09 MUMs.

    Did you have a LOADER_ROLLBACK_DETECTED blue screen or something else? The component that causes that BSOD seems to be Microsoft-Windows-BootEnvironment-OS-Loader.

    On the MUMs, it only has Server components declared at assembly.package.parent. However something still causes it to be installed on Client and other environments. Then if the drivers, declared at other MUMs are not installed, it goes kaboom.

    My two cents. Thank you.

    P.S.: I may update this post later as research continues. I've left some gifts as attachments: node.js analysis script and the results on 2025-09 CU. :)



    Edit 1: I tried to detonate the Windows 8.1 Client VM by doing unchecked and unpatched MUM installation using:
    The script from: https://forums.mydigitallife.net/posts/1886700 with KB ID modified and slight code changes as documented below:
    Code:
      for /f %%f in ('dir /b "package_*_for_*.mum"') do (
        echo %%f
        dism.exe /online /quiet /norestart /add-package /packagepath:%%f /ignorecheck
      )
    It only detonates when using the MSU or the master update.mum !?



    Edit 2: Added a script that allows to mod the MUMs (Server to Client) that can then be installed with a patched SSU.
     

    Attached Files:

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  9. Apoly

    Apoly MDL Member

    Aug 21, 2016
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    It just crashes into Recovery Mode without any error and I'm unable to get it back to boot into Windows properly.
    This only happens with Monthly Rollups 2025-07 and higher. Anything up to 2025-06 is fine.

    After some quick testing, it turns out it also happens to me with Datacenter edition (in Virtual Machine)
    so it looks like I may be encountering another problem related to 2025-07+ Monthly Rollups.
     
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  10. abbodi1406

    abbodi1406 MDL KB0000001

    Feb 19, 2011
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    I said they removed the licenses (that were in previous Rollups)

    boot files and related components doesn't check for Server edition, it will install for all Servers
     
  11. fch1993

    fch1993 MDL Senior Member

    Mar 14, 2020
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    What I tested is on VMWare 17.6.4
     
  12. Apoly

    Apoly MDL Member

    Aug 21, 2016
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    #3753 Apoly, Sep 14, 2025
    Last edited: Sep 15, 2025
    And if you integrate Monthly Rollup 2025-06 (or earlier) without LPP KB5017220, then update to Monthly Rollup 2025-07 (or higher) on live OS, it also works for you?

    EDIT : Nevermind, it also works for me now. I created new ISOs and all works fine now :)
    Looks like there was some kind of problem with my older ones...
     
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  13. Apoly

    Apoly MDL Member

    Aug 21, 2016
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    #3754 Apoly, Sep 20, 2025
    Last edited: Sep 21, 2025
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  14. AlfCraft07

    AlfCraft07 MDL Member

    Jul 18, 2023
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    Best way to update Client would be to just gather the changed files and copy them onto their directories, avoiding checks, SSUs, updates, etc altogether, and you’ll still be safe cause well, you use the files from the newer build. Or just install 2012 R2 and make it look like a client.
     
  15. abbodi1406

    abbodi1406 MDL KB0000001

    Feb 19, 2011
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    Best way is stop updating Client
    what difference does it make to stop at 2025-06 or 2026-10? it's the same end eventually
    updates are overrated
     
  16. shhnedo

    shhnedo MDL Expert

    Mar 20, 2011
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    But... sir... THE NUMBERS.....
     
  17. AlfCraft07

    AlfCraft07 MDL Member

    Jul 18, 2023
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    Just do it after EOS then lol. My August VM still stands btw
     
  18. abbodi1406

    abbodi1406 MDL KB0000001

    Feb 19, 2011
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    Doing it once with the last update sounds better indeed
     
  19. Boops

    Boops MDL Addicted

    Jan 5, 2008
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    Guys, what is the latest version of Windows 8.1? In Spanish, thanks.
     
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