Windows 10: Windows 10 Deactivated Itself and Will Not Reactivate

I have this computer since 2011. It has had Windows 7 then was upgraded to Windows 8 and finally Windows 10 through the years. It's been my daily driver and I never had this activation issue on it before. Today it began showing me this watermark about how Windows is not activated. I tried going to Settings and Activation and I get the following message:


"We can't activate Windows on this device because you don't have a valid digital license or product key. If you think you do have a valid license or key, select Troubleshoot below. Error Code: 0x803FA067"


I have not changed anything hardware wise recently to cause this deactivation. Any help would be appreciated.

:)

 

Windows 10 reactivation after deactivation

hi

I accidently deactivate my Windows 10 on my laptop . How can I reactivate it ? Windows 10 ist upgraded form windows 8.1 and I don't have de product key or ID.

 

windows 10 deactivated how to reactivate

My grandson somehow deactivated windows 10. I have a refurbished Dell that came with windows 7. I had updated to windows 10 when it came out. I have a product code for windows 7. what option do I use to reactivate windows?

 

Windows 10 Tweaks

Pressing “Windows+Pause Break” (it’s up there next to scroll lock) opens the “System” Window.

Windows 10: In the new version of Windows, Explorer has a section called Quick Access. This includes your frequent folders and recent files. Explorer defaults to opening this page when you open a new window. If you’d rather open the usual This PC, with links to your drives and library folders, follow these steps:

• Open a new Explorer window.
• Click View in the ribbon.
• Click Options.
• Under General, next to “Open File Explorer to:” choose “This PC.”
• Click OK

credit to Lifehacker.