Activation error after 6 months

[kkmb11]

I upgraded my laptop from windows 7 to windows 10 on Jan 2020. It was working till yesterday but after the regular update it started showing error in activation. When I enter my windows 7 key it is not accepting and I don't have my digital key for window 10. Kindly advice.

[#2]

Hello @kkmb11,

After you upgraded to Windows 10, you were supposed to buy new Windows 10 license. This is because, free upgrade to Windows 10 from Windows 7 is no longer available:

https://support.microsoft.com/en-in/help/12435/windows-10-upgrade-faq

Hence the Windows 7 key won't be accepted now. You can buy genuine Windows 10 license from Microsoft Store to fix this problem:

https://Microsoft.com/Store

Hope this helps!