A friend of mine runs W7 on his PC. A month ago it started to run slugishly and this morning after the daily AVAST anti-virus update AVAST reported that his sytem was infected with a Rootkit and wanted to schedule a boot time scan. He did a boot time scan and AVAST reported four occurrences of the same file and he then had AVAST move these to its virus chest. He rebooted his PC but there was no change in its slow perfomanace.
I read this way of removing a rootkit: http://www.ehow.com/how_6506657_fix-...it-ubuntu.html but it could be a scam.
Advice welcomed please.