Two days ago Spybot found and had me fix Win.agent.pz. Yesterday when I booted up I had no Windows desktop and Safemode would not work although I could access the taskmanager. I re-ran Spybot and it found Win32agent.pz, Win32.agent.jg and Virtumonde. I ran fix again and rebooted. I still have no Windows desktop, Safemode doesn't work and now I can't access the taskmanager and it seems to be doing a loop with logon and logoff by itself. Help.