Step One: Download Malwarebytes and run a Full
System Scan. Delete all the infections it finds.
Step Two: Go to Run > msconfig > startup, and Google up any suspicious
processes. Delete those that are viruses.
Step Three: Download ESET Online Scanner
and run a Full System Scan with that. Delete all the infections.
Step Four: Download CCleaner and run a scan
with that. Delete all excess files it finds.
Step Five: Download HJT and scan with it. Save
the log and post or PM me your log, and I will check over it.
*NOTE - I don't guarantee 100% removal. But I can get rid of most.
Steps 1-4 are OK, but please, go to Hackforums.net's HJT section where trained analysers such as myself will review your log, as information from this member may damage your computer more.