Overwritten genuine Win 8 key with used Media Center Pack key (which was invalid). Genuine key doesn't work now. How do I remove the MCP key from my account?

I have a genuine Windows 8 key which was obtained through Dreamspark.

I then received a reminder email from Microsoft; 
"Reminder: Activate Windows Media Center Pack with your product key"

 I forgot that I have already used the MCP key on another computer, and thought that it was a whole new key so I applied that key on this computer. It was invalid of course, since it has already been used, but now it is telling me to "activate windows" every once in a while.

How do I remove the invalid MCP key and get back my genuine Win 8 key? I tried re-entering my Win 8 key but it is now invalid.
Please refer to the link I am copying below. It will resolve your issue.

http://answers.microsoft.com/en-us/windows/forum/windows_8-windows_update/window-8-pro-key-become-invalid-after-install/6a3e0dc4-dfbd-4da9-ad7d-bed5108c7d2a


Regards
M.Adeel

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I did try to call a Microsoft CS, but it just ended up bouncing me through and fro different departments.

I am located in Singapore, so that could be why.

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Hi,

 

Please refer to this link to contact support in Singapore.

 

Do reply if you have more questions. Thank you.

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Try this method to activate windows please:

You need to open a run box and type: "Regedit"

Then located this key:

HKEY_LOCAL_MACHINE/Software/Microsoft/Windows/CurrentVersion/Setup/OOBE/ 

And find the one called "MediaBootInstall".

Double click that and change it from a 1 to a 0.

Then open up cmd as an administrator

Type the command "slmgr /rearm"

You will get a restart your computer messge.

Restart

Then when your computer restarts you need to open a run box again and type "slui.exe 3" and it will allow you to enter your product key and activate.
M.Adeel

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A recent update has removed the "MediaBootInstall" registry, so this method does not work any more.

Thanks for trying, kind of a head scratcher as to why they would approve a used Media Pack key with no way to remove the key, and invalidate your genuine Win 8 key at the same time. It's hella annoying.

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Hi Karrui,

I am in the exact situation as yours right now. Have you solved your problem??

Thanks,
Josh

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Last updated March 24, 2018 Views 395 Applies to: