Question abt Vista upgrade

[jakelong]

Not sure if this is entirely true but I read somewhere that once you upgrade to Vista from an existing XP install, the XP becomes unuseable. Does that mean if after installing Vista , I want to go back to Vista, I cant use the old XP disks? Can I call MS and reactivate.

[Redeemed]

Not sure if this is entirely true but I read somewhere that once you upgrade to Vista from an existing XP install, the XP becomes unuseable. Does that mean if after installing Vista , I want to go back to Vista, I cant use the old XP disks? Can I call MS and reactivate.

I've never heard of that before. You should be able to go back to XP just fine.

If this were true, how would so many people be capable of dual booting XP and Vista? :p

No, you can go back to XP without a problem. ;)