Without trained help just using ClamAV to remove suspected dirty files from Windows could Damage the OS making it unbootable. And It may not be effective anyway.
I learned this the hard way, about 2 months back. ClamAV (&TK) are for Linux scanning only. These sees most all ".exe" files as malicious, because they don't belong on a Linux system, unless one is running WINE. If one cleans these files, with no professional assistance, then the Windows install will surely be unbootable & can vouch for it. Over 2,000 "malicious files" were found, I deleted only the few that looked out of the ordinary & was left with an unbootable Windows 7 Pro.
Fortunately, I had a backup image taken just two days earlier to fall back on, as my computers are backed up on a schedule, afterwards the external drive is disconnected. This prevents a Crypto type of infection from also encrypting my backups, making these useless. I also alternate backup drives, not hinging all of my trust on one hard drive. Backup or external drives are also prone to failure. Though many times with retail pre-assembled backup drives, it's the connectors or possibly the cable that goes bad. Normally I can carefully crack one of these open & the drive will work as good or better in a docking station.
There is a separate ClamAV for Windows, that's designed to work with that OS.
One cannot believe everything that's posted on the Internet in regards to cleaning Windows with Linux Live install media. However one can retrieve files (folders that contains irreplaceable data) from a badly corrupted Windows using this option, there are tutorials on how to perform this safely.
If one's Windows install is infected, then as Nick noted above, then create a topic in the "Am I Infected" section of the Forum.
This section gets many requests for assistance, so if your need is immediate, such as a work/school computer, it would be best to go to a reputable IT repair service. And by that, I don't mean the Geek Squad at Best Buy or other places that offers the service. I strongly advise all who reads this to steer clear of their service, as I've repaired some of their shoddy work.
Should one post for assistance in the section above, patience is a virtue. The Malware Response Team is very busy & when you get contacted, be sure to promptly respond. Be sure to monitor your email associated with the forum 2-3 times daily & be prepared to follow any instructions given. If there's anything that's not understood, ask immediately.