Upgrading motherboard/windows 7 reinstall Qs

[singh_uk]

I will be shortly upgrading my P45 e6600 pc to a i7 rig. I already have Windows 7 installed (w7 pro upgrade from a previous install of XP) and had three questions:

1. Can I just do a repair of Windows 7 after upgrading or is a full reinstall required?

2. If a full reinstall is required, will I have to deactivate my old Windows and reactivate it? Since my current copy has been activated already, will Windows be confused if another copy of Windows is attempting to be activated with the same key? Thanks

3. I no longer have my copy of XP so will this matter when using the W7 upgrade disc when doing a clean install?



THanks

 

[singh_uk]

Thanks everyone

Any way to find out whether or not my XP I previously had was retail based upon the current state of the PC?

And to confirm - i will not have to 'deactivate' my current copy of Win 7 - just install straight overi t?