Win7 deactivated after installing Win 8.1 as 3rd OS

[PowerOfDark]

Hi!

Today I've installed and activated (legally) Windows 8.1 as third OS (XP, 7).
Then I booted to Win7 and boom, my 7 is deactivated and it doesn't accept the key!(OEM)
What can I do?
I tried to activate by phone, but without success.

Regards.

 

[NoelDP]

You probably messed with the partitioning when you created the new install?


Please follow this tutorial and post an MGADiag report - then we can see what the problem is.

http://www.sevenforums.com/windows-updates-activation/234159-windows-genuine-activation-issue-posting-instructions.html

Ignore errors produced when clicking on the Copy button - they simply mean that the tool could not create the backup files for some reason. The data is still copied to the clipboard for pasting to your response.

Please also state the Version and Edition of Windows quoted on your COA sticker (if you have one) on the case of your machine (or inside the battery compartment), but do NOT quote the Key on the sticker!
http://www.microsoft.com/en-us/howtotell/Hardware.aspx


Please also tell us how the system is currently partitioned - and what changes you made to allow the new install.