Worked great for system restore.

Everything perfect! Paid and windows activated!

Perfect key, it works exactly as described on the product page. Make sure you read and understand EVERYTHING that you are doing, and it can't go wrong. 5 stars!

its working properly .
but for how many days or years?

Firstly I was afraid of this site. I ordered a windows 10 pro key and I got it less than 10 seconds.