Originally Posted by NeiliX
Quick format sets the entire disk as writeable just as is done when you delete a file. Normal (FULL) format flips all bits in the hard drive to 0 meaning there can be no lingering data to recover later on. This is the more appropriate method of reformating if your trying to recover from a virus.
I will add to the above that I always do the FULL format...
Before doing so if the OS is "up" I run a scandisk (through) to check the drive... and I may run any type of self-checks from the BIOS just for the heck of it...
BTW While the above takes longer, it's not like you have to sit there and watch the progress bar. Start it, and go get some lunch or something....
PS: I think running the full format during the OS install checks the drive for errors more so than the quick format?