a) Read this:
how to get to SafeMode

in safeMode go start → programs → avast and start your avast scanner doing a full system scan; scan/move the files with it

or go to “My Computer” and go to the folder/files where the infected files are…
See Windows Help on how to open a folder (e.g. doubleclicking it) and how to delete a file
if you can’t do this, maybe you should get a friedn/collegue/someone with a bit more experience…

or run AD-AWARE, SPYBOT & CWSHREDDERE either in SAFEMODE or normally…

:wink: