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Windows License Key Incorrect & Can't Change


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#1 mountainbadger

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Posted 06 April 2016 - 11:10 AM

Hello, I have a Windows 7 Professional machine that is indicating that it's running a counterfeit version of Windows.  It is still running the same version of Windows as when I bought it from Acer. When I checked the license key, it is different than the key on the tag on the machine.  There is no option to change the license key in the computer properties and I can't figure out how to fix this.  Any help is appreciated.



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#2 hamluis

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Posted 06 April 2016 - 11:18 AM

Contact Microsoft via phone.

 

Louis



#3 mountainbadger

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Posted 07 April 2016 - 01:53 PM

I tried getting Microsoft to help, but they basically gave up and told me to do a clean install.  Of course, I don't have the original CD and since it's an OEM install, I can't download the .iso from Microsoft.  I called Acer and they said it's a registry problem that they can fix if I pay (it's out of warranty).  Any help with the registry fix as I'd rather not pay?  Thanks.



#4 JohnC_21

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Posted 07 April 2016 - 02:22 PM

The key found by a keyfinder will be different than one found on the sticker. It is a SLP key used with a SLIC table in BIOS to self-activate. The key is common on all Acer Windows 7 pro computers. 

 

Use Advanced Token Manager to back up your Activation Files and key. 

 

You can try the workaround here. Use the key on the sticker but you will need to use phone activation. If you cannot activate then restore the backup from ATM. 

 

Edit: It is possible to change your key in Windows 7 to the one on the sticker. 

 

http://windows.microsoft.com/en-us/windows/help/genuine/product-key#T1=tab01

 

Another method using the command line.

 

http://tweaks.com/windows/39026/change-windows-product-key-after-install/


Edited by JohnC_21, 07 April 2016 - 03:08 PM.





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