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The copy of Windows 7 is not genuine

Question
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I updated to Windows 10, but did not like it, so I went back to windows 7, within 30 days (actually just 8 hours) within the first two tutorial you get on google if you search for a way to upgrade to windows 10 and downgrade to windows 7 (I can't post links here because my account have not been verified yet)
Now that I've back to windows 7, The computer tells me that the copy of windows 7 is not genuine and that I need to buy a product key...? What on god's green earth?? The given key in the computer is invalid. Now this dumb messege just keep appearing and the desktop background always go back to plain black after some time. This is complete nonsense, Microsoft! I demand something to be done for me.
- Moved by Dave PatrickMVP Sunday, March 8, 2020 4:02 AM looking for forum
Sunday, March 8, 2020 3:56 AM
Answers
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I'd try asking for help over here.
https://answers.microsoft.com/en-us/windows/forum/windows_7-windows_install
https://social.microsoft.com/Forums/en-US/home?forum=genuinewindows7
Regards, Dave Patrick ....
Microsoft Certified Professional
Microsoft MVP [Windows Server] Datacenter Management
Disclaimer: This posting is provided "AS IS" with no warranties or guarantees, and confers no rights.- Proposed as answer by Richard MuellerMVP Monday, March 9, 2020 1:07 AM
- Marked as answer by Richard MuellerMVP Tuesday, March 17, 2020 9:36 PM
Sunday, March 8, 2020 4:02 AM
All replies
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I'd try asking for help over here.
https://answers.microsoft.com/en-us/windows/forum/windows_7-windows_install
https://social.microsoft.com/Forums/en-US/home?forum=genuinewindows7
Regards, Dave Patrick ....
Microsoft Certified Professional
Microsoft MVP [Windows Server] Datacenter Management
Disclaimer: This posting is provided "AS IS" with no warranties or guarantees, and confers no rights.- Proposed as answer by Richard MuellerMVP Monday, March 9, 2020 1:07 AM
- Marked as answer by Richard MuellerMVP Tuesday, March 17, 2020 9:36 PM
Sunday, March 8, 2020 4:02 AM -
Hi Le Bao Phuoc,
I'd like to confirm how you downgraded from Windows 10 to Windows 7.
I suppose you could restore Windows 7 with Settings.
Regards,Ashidacchi -- http://hokusosha.com
Monday, March 9, 2020 3:26 AM -
I used this guide. It was done after 8 hours of installing Windows 10.
Monday, March 9, 2020 3:55 AM -
Hi,
Thank you for information.
I've found another article: How to Uninstall Windows 10 and Downgrade to Windows 7 or 8.1
Please refer to this.
Regards,Ashidacchi -- http://hokusosha.com
Monday, March 9, 2020 5:42 AM