I have done a successful full restore to a new PC C drive without a problem. My concern is how to do a restore to a C drive that has a virus, or some other software problem preventing it from running correctly. I thought a restore just wrote over the existing c drive data, until I read things like: "By default, the program will not overwrite any files and folders, thus giving the files on the hard disk unconditional priority over the archived files". It also went on to say (In the True Image Guide) "Selecting the Overwrite existing files checkbox will give the archived files unconditional priority over the files on the hard disk, though, by default, the system, hidden files and folders, as well as more recent files and folders are preserved from overwriting. If you want to overwrite those files and folders too, unselect the appropriate checkboxes". I am totally confused on how to do a complete restore from an Archive on my external HD to replace what is present on the PC C drive. Is there a simple answer to this? Would I have to delete the original c drive data before the restore?