Windows 10: win10 pro to win 10 home

Hello,


I currently have Win pro set up as my OS, but my key is only good for home. how to I revert to home without losing my key?

:)

 

Windows 10 pro 1903 will not update to Win 10 Pro 1909

Notes:

1) Computer originaly used Win 7 Pro OA (OEM)

2) Reformatted the HD

3) Used Win10 Pro version 1903 to install on the Win 7 Pro OA (OEM) based computer.

4) Used the OA Product Key that was listed on the Computers Case.

5) Installation completed.
Program confirms activation is valid.

6) Win 10 Pro will not list an available upgrade to Win 10 pro version 1909.

 

BSODs in WIN 10, Pro

Where did you purchase the "OEM version of Win7 Pro?"

When did you do the clean install of Win7 Pro on the 2 TB HDD?

Have you Activate (Validated; Authenticated) the clean install of Win7 Pro?

Is the Win7 partition fully-patched at Windows Update?

Sounds like you need to format the drive where Win10 resides and then do a clean install of same using a new disk you've created from the "MS Win 10 web site,"
not a backup or clone.

FYI:

• Dual-booting in Win10: FAQ
  
  How to Dual Boot Windows 10 with Other Versions of Windows, macOS and Linux
  

Tip: You'd be better off posting about installing & dual-booting Win10 in this forum =>

http://answers.microsoft.com/en-us/windows/forum/windows_10-windows_install

 

WIN10 HOME OEM UPGRADE TO WIN 10 PRO

dears, I have bought a new PC coming with an OEM WIN 10 home to replace a crashed PC running on WIN 7 ULTIMATE. can I upgrade the new WIN10 HOME to WIN10 PRO using the WIN7 ULTIMATE license key? thanks.