the great hero

Windows 7 activation error 0xC004C020

I have a genuine product key of Windows 7 which I used several times on the same computer every time I reinstall Windows 7. In every installation, activation could be done successfully. But this time after reinstalling windows, I tried to activate Windows 7 but activation failed!

Code:
0xC004C020

Description:
The activation server reported that the multiple activation key has exceeded its limit.

Could you help me understand and solve this problem?

This thread is locked. You can follow the question or vote as helpful, but you cannot reply to this thread.

Question Info

Last updated February 17, 2019 Views 147,569 Applies to:

Answer

Andre Da Costa

Try reactivating by telephone:

Activate Windows 7 manually:
1. Click Start, and in the Search box type : slui.exe 4

2. Press ENTER on your Keyboard

3. Select your Country.
4. Select the Phone Activation option, and hold on for a real person.

Why do you need to be reinstalling Windows so many times on your machine. If you doing testing or software development, trying creating backup images of your installation which you can restore and use for various scenarios.

http://www.notebooks.com/2009/10/24/how-to-backup-your-installation-of-windows-7/

Teching It Easy: With Windows |ActiveWin |Notebooks | Microsoft MVP

Best,
Andre
Windows Insider MVP
MVP-Windows and Devices for IT
twitter/adacosta
groovypost.com

52 people were helped by this reply

Did this solve your problem?

Sorry this didn't help.

Great! Thanks for marking this as the answer.

How satisfied are you with this reply?

Thanks for your feedback, it helps us improve the site.

How satisfied are you with this response?

Thanks for your feedback.

Answer

Gokul T

Hi,

Adding to the suggestions of Ron and Andre Da Costa,

See How to troubleshoot Volume Activation error codes on Windows 7, Windows Server 2008 and Windows Vista-based computers

Gokul - Microsoft Support

[If this post was helpful, please click the "Vote as Helpful" (green triangle) button. If it helps in resolving your issue, click "Propose As Answer" or "Mark as Answer" button. By proposing/marking a post as Answered, or Helpful you help others find the answer faster.]

5 people were helped by this reply