So I got a old PC, and its Hard Drive has a nasty virus. However its got decent specs and all so I decided to replace my PCs hard drive with another PC of similar model. Both had Windows XP on them however... my PCs version was a pirated copy. So after switching drives I found that my PC wanted me to authenticate the copy since its a different PC and all. Accounts, Wallpapers and everything loads up like normal. Its just that Windows wont let me do anything without authenticating. Any help would be apperiated.