My PC was infected with the Zlob Virus. After using various anti-spyway and AVG Version 8.0 to clean up my PC, I am experiencing problems starting up my PC. My PC OS is Windows XP - SP2. I have ran CCleaner twice and yet the PC "hangs" when I have logged in.

Hi TWKCHAN, and welcome to the forum.

I would suggest you first follow the link below to check as to whether your PC is actually "clean" before doing anything else.

http://forum.piriform.com/index.php?showtopic=17457