How to clean a hidden computer virus?
Hidden Virus also called backdoor trojan or rootkit. You can download AVG Anti-Rootkit (Free) to remove the virus.
The best tools I have encountered are rootkit removers and the following anti-virus engines: Antivir, Kaspersky, ADAWARE by Lavasoft, Spybot Search and Destroy.
Of course the first ones are limited because you have [...]