can not access virus chest files
message I get is virus chest sever not running.RPC communication failed.
I need help.
RPC error is generally related to other antivirus present or, at least, firewall blocking.
Anyway, RPC error is most likely correct by this procedure:
Go to Control Panel > Add/Remove programs > avast! antivirus > Remove
Then choose Repair function in the pop up window (Repair).
If this does not help, can you uninstall / boot / install / boot again?