Here are some tips for cleaning malicious software
Always Do Windows Update
Always apply the latest Service Pack
Download and Install CCleaner
CCleaner is a freeware system optimization, privacy and cleaning tool. It removes unused files from your system – allowing Windows to run faster and freeing up valuable hard disk space.
Download Free Version of SuperAntiSpyware
Download and install the free version of SuperAntiSpyware
Download and Install ComboFix
You can get it from
Download Trend Micro™ HijackThis
Download and install HijackThis.