Senior Member
So, for performance reasons I need to wipe and reinstall windows on my laptop. Do I need to buy a new registration code [$$ :(] or will windows recognize that the computer is the same and let me use the same key??

Joe S

Excellent Member
It depends on what you are reinstalling it with. The factory restore option or a genuine Windows disk of some type. Was this an upgrade? A little more info please.


Excellent Member
Microsoft Community Contributor
We had a thread on this the other day but I can't find it. Basically you can reinstall an upgrade version on a clean drive if it has been installed and activated earlier. You will have to call them and your computer will print out a list of numbers which you read to them and they will read you some numbers back.

If it is not an upgrade version but a full retail, you can install it again with not problems, as long as you only have it installed on one computer.

This website is not affiliated, owned, or endorsed by Microsoft Corporation. It is a member of the Microsoft Partner Program.