Downgrade Windows 10 Pro to Home Edition?

Discussion in 'Windows 10' started by PCTech91, Nov 10, 2015.

  1. PCTech91

    PCTech91 MDL Novice

    Apr 1, 2015
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    Does anybody know how to Downgrade Windows 10 Pro to Home Edition? My BIOS is UEFI and the product key still displays a Windows 8.1 Home edition key. My current OS is Windows 10 Pro KMS. I'm on Win 10 build 10586 Pro. I heard with this build you can upgrade the Windows 7/8.1 to a Windows 10 key. So i'm trying to make this laptop a Windows 10 Home with legal key because I want the BIOS key to be the same as product in the registry.
     
  2. odiebugs1

    odiebugs1 MDL Expert

    Jul 30, 2015
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    #2 odiebugs1, Nov 10, 2015
    Last edited: Nov 10, 2015
    Start menu and select Settings. Click the “Update & security” icon and select “Recovery.” You should see a “Go back to Windows 8.1” option. Then just upgrade to 10 home.

    If not there, just clean install 8 home again and it should activate and after you run a act check, upgrade to home or use the clean install trick in the link in my sig.

    Remember maybe this Thursday or next Tuesday after the fall update is out you can just add the OEM key, so you can clean install home, so why not just wait.
     
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  3. Enthousiast

    Enthousiast MDL Tester

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    What i would like to know is if a clean install with 10 home 10586 would automaticly see the oem:Dm key from the bios. Or when the Multi_OEM project maintained by the_guardian is used. When upgrading we've seen that 10565 saw the oem bios key and installed the version it corresponded with.
     
  4. PCTech91

    PCTech91 MDL Novice

    Apr 1, 2015
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    I can't, I upgraded Windows 8.1 to Windows 10 Pro 10240 on July release day, then did a PC reset a week later. The Windows 8.1 files are long gone. Can a Windows 10 Home ISO convert a Pro to Home? Sorry if this is hurting everyones brains.o_O
     
  5. odiebugs1

    odiebugs1 MDL Expert

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    It should, as people have had problems trying to change versions but the install picked up the OEM key, I just posted safe route.
     
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  6. Enthousiast

    Enthousiast MDL Tester

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    I edited it already :) Xinso and i and some others experienced it while helping someone who had the wrong version being installed, it whas because of oem:Dm key :)
     
  7. odiebugs1

    odiebugs1 MDL Expert

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    Give it a try, never tried to upgrade downgrade, LOL won't hurt if it fails, because you can just clean 10 home and it should grab the OEM key.

    P.S. Everyone is here to help so don't worry about questions.
     
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  8. Enthousiast

    Enthousiast MDL Tester

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    If you plan to do a clean reinstall read odiebugs and mine responces please :)
     
  9. PCTech91

    PCTech91 MDL Novice

    Apr 1, 2015
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    Ok I will wait for the Windows 10 10586 Home ISO to come out. Thanks again. I will keep you all updated when I test it out.
     
  10. Enthousiast

    Enthousiast MDL Tester

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    #10 Enthousiast, Nov 10, 2015
    Last edited: Nov 10, 2015
    The MSDN iso will be called "Multiple Editions" containing Home and Pro, I expect :)

    But the home esd file converted to iso is the same as the msdn iso will be so you can use it if you want. The home versions on both iso's will be the same (to clarify my rambling ;) )
     
  11. PCTech91

    PCTech91 MDL Novice

    Apr 1, 2015
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    I downloaded and did a clean install of Windows 10 Home 10586. It worked and Windows is now legal with legal key but my BIOS still displays a Windows 8.1 Product Key for some reason.o_O
     
  12. Gharlane00

    Gharlane00 MDL Addicted

    Aug 26, 2009
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    Windows is Not going to overwrite the firmware key. They would never risk trashing someone's BIOS by accident.
     
  13. IAmAPC

    IAmAPC MDL Junior Member

    Aug 1, 2013
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    Why would you want to downgrade from Professional to Home Premium?

    Do you save any disk space or battery life on notebooks with the Home Premium, if you do not plan to use the Pro features? That's my question.

    The downloaded ISO for both are of identical size at least.
     
  14. lobo11

    lobo11 TOMAHAWK CHOP

    Feb 16, 2012
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    Does not matter, you have HWID:tasty:
     
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  15. lobo11

    lobo11 TOMAHAWK CHOP

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    In Windows 10 there is no such thing as Home Premium, just Home:D
     
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  16. IAmAPC

    IAmAPC MDL Junior Member

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    #16 IAmAPC, Jun 30, 2016
    Last edited: Jun 30, 2016
    Oops. Maybe I wasn't clear. I did not want to derail this old thread, but I have to, a little bit. So I ask it in another way: Help me choose between Home and Professional, as I'm eligible for both (thanks to Daz)! More precisely, does Home have any benefit over Professional?
    - The downloaded images are of the same size. Perhaps, installed, Home takes less space on the disk than Professional?
    - Perhaps, Home eats less battery on a laptop than Professional?
    - I don't plan to use the two main added benefits of Professional, such as BitLocker and Hyper-V. Still, any benefit for me to going Pro instead of Home?
    - Will the Windows Subsystem for Linux be available for Home and Premium alike? I googled this to no avail!
    - I heard, and maybe that's the one benefit I could use in Pro, if not available in Home, that in Home, if you are in the middle of your work, with 100 tabs and Windows open, and Windows decides we are going to reboot, you have to obey and go on the ride, while you can only postpone reboot after an update in Pro. Like you could postpone rebooting in Windows 7, but it was far from perfect. True? Can you choose when to update/reboot in Home/Pro?
     
  17. T-S

    T-S MDL Guru

    Dec 14, 2012
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    You can downgrade w10, just like any Windows version with the usual trick of changing the edition ID and the product name here

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion

    BTW there isn't any point in going from pro to home.

    If you are concerned about the space and the resources just use MSMG to remove the crap from the PRO ISO before installing it (or before doing an in place upgrade)
     
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