Windows7 home premium with mynold product key

[hungbigintx]

Hello,
my windows has quit working and if i reinstall windows home premium which i had before can i use my product key that i used before

 

[Guest]

if it is on the same motherboard; YES!
if it is a different motherboard but a retail version: YES!
http://www.tomshardware.com/forum/23305-63-windows-versions-explained

 

[nhasian]

use the product key that you own. if you have trouble with it, you can contact microsoft for support.