How to Fix Windows 7 Activation Error 0xC004F061

This error occurs when you install Windows 7 from a clean drive with an upgrade license. You can install Windows XP and then install Windows 7 from within XP or you can do the following:

Activate

Open a command prompt window as an Administrator
Enter the following commands

slmgr -ipk <Product key>

slmgr -ato

Let me know if this helped you! Leave a comment.

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3 Comments (Newest on top)

D Winn says:

14/04/2010 at 4:01 pm

Tried this, a Windows Script Host window pops up saying “On a computer running Microsoft Windows non-core edition, run slui.exe. Tried the -ato command too, says the activation key is blocked.

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- Ben says:
  
  14/04/2010 at 6:21 pm
  
  Make sure you are opening the cmd prompt as an administrator.
  Also some antivirus can block the attempt to change the key as protection
  
  Reply
Don Irwin says:

13/05/2010 at 5:34 pm

cmds exec ok

saw failure ms

then saw success msg (yes a standard MS contradiction !)

rebooted but still prompted for the act ket – so did not work for me

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