See whats in bold? No you cannot. If you were to 're-install' windows, format the hdd and reinstall windows, or restored the system back to *original* factory settings you would have to still re-enter the 25 digit product key code to validate your verison of Windows.i built my own pc and i know on my moms compaq you can do a system restore to clear it out to factory settings. is there a way to do this with my windows xp disk withought havening to re-activate my windows disk? on my pc
im guessing you prob dnt want to reactivate windows coz its a pirate copy and some old friend activated it for you but you dont know how to ???
If you wanna install all your patches SP's etc, you can use a great program called autopatcher, it saves loads of time, available here http://www.autopatcher.com/downloads/If you have to install ALL the updates,patches,service packs, then yes I feel for you. I just did a FFR (Full Format & Recovery) on one of my systems Microsoft had 83 updates for my system. Took a while.
very interesting link cheers raffaz +1