question about windows 10

[tremmor]

I have windows 7 now. If i upgrade to windows 10 with my 7 key
and if i don't like it, can i reinstall windows 7 again using my original key.
Actually i likely will soon this winter. this question was asked by the wife.
her concern is she won't like it.

 

[johnb35]

You have 30 days to decide if you like it or not and go back to 7. After the 30 days, you can't go back to 7.