it’s suscpisious to me that even a geek squad rep (even whith their poor reputation for quality staff) would have said something so ridiculous unless there were other factors involved which you didn’t disclose. but if he did, it’s worth a good laugh at least. If the items disappeared after running the defrag, that’s really odd. You probably need some real expert help to be connected to your PC remotely to figure out what is wrong. Are you sure the viruses have been revmoved? You may also be dealing with spyware (particularly if your internet explore toolbars are effected. I’m guessing you aren’t very technical, so why not call one of the local providers who can give you complete remote support (they can do it themselves remotely with remote control utilities if you give them permission). Sedlock Associates can probably help, but i don’t know what their web site is. You can look it up on google. hydra network (hydranetwork.com) can do the same thing, but also has technicians that can come to you if needed (located in new york). Both of these are better solutions in my opinion than geek squad (cheaper and more knowledgable). I think you are in over your head, but if you want to try to resolve it yourself, download an antispyware program and see if that fixes it. Also, rerun your antivirus software if you have it (or contact hydra network for a free virus scan). See if that fixed your issues. sorry, can’t be of more help. these issues are quite compicated.
Defragmentation and checkdisk are both utility software that only maintains the hard disk drives efficiency to access files. Basically, they are only done to speedup the computer system. When we talk about viruses, an effective and updated antivirus software could only do the thorough scanning and deleting of potential viruses.