I have a count on window user there are more than mac users and windows usage is fun until it annoys you with this “your window is not activated”.
Here I have a method to activate your computer without windows activation key.
1.download below text file.
2.save this file with “activate.bat” file name.
3. Right click on that file and click “Run as administrator”.
your windows will get activated if not give a second try.
You may not get activated your window in one go just try another one definitely you will succeed.