Hi there, tzby72, and welcome to TSG.
I was having a read-up on the Blaster worm, and your problem doesn't sound like it.
I can't say that I know what would be causing your first two problems (but from first impressions would suggest a problem with Windows Explorer), but for the other two (sound and network) I would suggest going to the IBM/Lenovo website and downloading and reinstalling your drivers. This is the easiest fix to try to begin with.
Let us know how this goes, and I wish you the best over there.