Windows 10: Error activating the Windows 11 key even though it worked previously

Discus and support Error activating the Windows 11 key even though it worked previously in Windows 10 Software and Apps to solve the problem; When I turned on the computer for the first time and ran Windows according to the key written on the back, everything worked and there were no errors.... Discussion in 'Windows 10 Software and Apps' started by Mateusz_970, Feb 24, 2025.

  1. MATEUSZ_970
    Mateusz_970 Win User

    Error activating the Windows 11 key even though it worked previously


    When I turned on the computer for the first time and ran Windows according to the key written on the back, everything worked and there were no errors. However, now, half a year after starting Windows 11, the message from that code appeared on the screen: "Activate Windows, Go to settings to activate Windows". When I entered the settings in the "System" tab, at the very top it said "Windows has not been activated". After clicking "Activate now" and then, when it took me to Activation, I clicked "troubleshoot. However, I got "The system cannot be activated on this device" and error 0xC00

    :)
     
    Mateusz_970, Feb 24, 2025
    #1
Thema:

Error activating the Windows 11 key even though it worked previously

Loading...

  1. Error activating the Windows 11 key even though it worked previously - Similar Threads - Error activating key

  2. Error in activating the Windows 11 key even though it previously worked after updating...

    in Windows 10 Software and Apps
    Error in activating the Windows 11 key even though it previously worked after updating...: When I turned on the computer for the first time and ran Windows according to the key written on the back, everything worked and there were no errors. However, now, half a year after starting Windows 11, and after updating Windows 11, version 24H2 from February 22, 2025, a...

  3. Error in activating the Windows 11 key even though it previously worked after updating...

    in Windows 10 Gaming
    Error in activating the Windows 11 key even though it previously worked after updating...: When I turned on the computer for the first time and ran Windows according to the key written on the back, everything worked and there were no errors. However, now, half a year after starting Windows 11, and after updating Windows 11, version 24H2 from February 22, 2025, a...

  4. Error activating the Windows 11 key even though it worked previously

    in Windows 10 Gaming
    Error activating the Windows 11 key even though it worked previously: When I turned on the computer for the first time and ran Windows according to the key written on the back, everything worked and there were no errors. However, now, half a year after starting Windows 11, the message from that code appeared on the screen: "Activate Windows, Go...

  5. cant activate Windows even though it was previously activated on the same device

    in Windows 10 Gaming
    cant activate Windows even though it was previously activated on the same device: HELP!!! https://answers.microsoft.com/en-us/windows/forum/all/cant-activate-windows-even-though-it-was/1903894e-49a7-4a2f-88ec-6d217e71a095

  6. cant activate Windows even though it was previously activated on the same device

    in Windows 10 Software and Apps
    cant activate Windows even though it was previously activated on the same device: HELP!!! https://answers.microsoft.com/en-us/windows/forum/all/cant-activate-windows-even-though-it-was/1903894e-49a7-4a2f-88ec-6d217e71a095

  7. Windows 11 shows "your windows license is not activated" even though it is activated in...

    in Windows 10 Gaming
    Windows 11 shows "your windows license is not activated" even though it is activated in...: Windows 11 says "Your Windows License will expire soon", When i check it in settings it says windows is activated.....but it keeps on showing that message and its pretty annoying......how to get rid of it please help...

  8. Windows 11 shows "your windows license is not activated" even though it is activated in...

    in Windows 10 Gaming
    Windows 11 shows "your windows license is not activated" even though it is activated in...: Windows 11 says "Your Windows License will expire soon", When i check it in settings it says windows is activated.....but it keeps on showing that message and its pretty annoying......how to get rid of it please help...

  9. Windows 11 shows "your windows license is not activated" even though it is activated in...

    in Windows 10 Software and Apps
    Windows 11 shows "your windows license is not activated" even though it is activated in...: Windows 11 says "Your Windows License will expire soon", When i check it in settings it says windows is activated.....but it keeps on showing that message and its pretty annoying......how to get rid of it please help...

  10. Activating windows even though it came activated?

    in Windows 10 Updates and Activation
    Activating windows even though it came activated?: This is a very strange question, I know. About a year and a half ago I upgraded to an SSD to get my games to run faster, and had my friend install it for me. Tonight, I went to go update some settings and realized it said "You need to activate Windows before you can...