im using vista ultimate 64bit sp1.
recently my mobo fried, biostar tf7050-m2
and i just change it to abit sumtin mobo..

and with my past experience using xp, i would have to reformat may windows to use it again...
but yesterday, when i bootup my pc, its just work like normal, except i have to install afew driver here and there.

so my question is,
izzit safe using it without formatting?
would it be stable?
wut about the old driver?

but could it cause any harm by leaving it there?

well, i dont mind a few mb