Virus & HD DRAMA

HI everyone We have a “friend” staying with us & since this moron has arrived our pc has been running at a snail’s pace & I get “Not Responding” every time I try do something. Norton hasn’t detected anything but Malware Bytes has detected: PuP.Bundleoffer.Downloader.S

 

 

 

MB has deleted this but now every time the PC starts CHKDSK runs, it never finds anything but it runs every bloody time I start the PC. Norton is no longer working, everytime I try click on the Norton Icon I get this message in the tray:

 

 

UISTUB.EXE –Corrupt file.The file directory C: Is corrupt/unreadable.Please run CHKDSK utility.

 

 

I am running CHKDSK but it doesn’t finds anything wrong. I have uninstalled Norton, I couldn’t do it through add/remove, I had to run the removal tool. When I run the removal tool I get this waring at the bottom of the screen:

 

 

Sym.NRT.EXE corrupt File. The file directory C: Is corrupt/unreadable. Please run CHKDSK utility

 

 

Now that I have run the removal tool a few times, I am getting this warning:

 

 

Sym.NRT.EXE corrupt File. Exception Processing Message C0000102 Parameters 75bbbf7c.

 

 

 

I would appreciate any help.