pc running extremely slow. virus scan returned nothing. what can we do?

ok thinking of going for complete fresh install as i can't find anything though will keep trying for the minute.

what should i do to make fresh install as painless as possible? we have 2 drives so hopefully should be make it quick and easy but one of my main concerns is there's currently 4 user accounts and they wont want to have to go through all their settings again if i can avoid it
 
Back
Top Bottom