How would I go about reinstalling the DHCP and DNS clients and their dependencies? I've had a recent virus/hacker attack and apparently the before mentioned things had been marked for deletion or had already been deleted, and the services won't start up. I can't even connect to the internet now because of it. I'm not really to good with these types of things so I'm at a loss for what to do. I have Windows Vista Home Basic HP/Compaqs OEM version. I'm not really convinced it was because of a virus because I haven't downloaded anything, visited fishy sites, or anything of the sorts but then again it might have been a dormant virus/trojan waiting for an internet connection or something. Here's how the 1st couple of days played out, I had just gotten internet back like a week ago, and the first time I get on my cpu shoots up to 100% usage from the time the computer logs me in til I shut it down. Day 2: Same thing only this time I couldnt log into my user on the computer and had to log into another user to reset the password on mine. Day 3: Blue Screen upon log in. Start up in safe mode do a virus scan with Avast! was able to get rid of 11 viruses. Restart computer, log in fine, can't get online. I've tried system restore, it fails. Tried doing a reset to factory settings, all it does is restart my computer (I've restored to factory settings once before so no idea why it wont work now). I don't have a disc to reinstall windows and I can't pay for one either so I'd say im screwed but if anyone knows of another way to fix my computer please let me know. Sorry for the wall of text, It's just I wanted to give as much info as I could.