Hm, you use the Avast Monitor(realtimescanner?). You should be able to delete them in Windows safe mode.
You may have some open shares on your PC, so they allways come back. To answer that, you could try to identify the reported Viruses by using this link: http://www.kaspersky.com/remoteviruschk.html
To see, if you have open shaeres, you can use this Link: https://grc.com/x/ne.dll?bh0bkyd2