"Q: There´s a red circle on avast! a-ball icon in system tray and when I click on it, the error message appears saying "the AAVM subsystem detected a RPC error". How to fix this?"
This message above does apply to me. Their is a red no smoking icon on avast and if try to open on access protection center I get that above message. The answer doesn't work in the Faq. I do use vista(The solution it had would not for vista, I did try what it said anyway but In that location it did say that avast is automatic and started.
Here is the answer it gave me.
"A: First, use Windows Update to be sure that all Windows components (including "RPC") is up to date. Then restart your computer and check if the problem persists. If it persists, follow these instructions:
Right-click the icon MY COMPUTER and select MANAGE.
In left column unroll SERVICES AND APPLICATIONS.
Click on SERVICES.
In the right column, look at the state of service avast! Antivirus.
If the service isn't set to start automatically, set it that way (right-click it and select PROPERTIES and the STARTUP TYPE set to AUTOMATIC). Restart the computer after making the change.
If it was already set to "Automatic", check the status of the service. If it not "Started", try to start it (right-click it and select START).
If the service cannot be started, your avast! installation might be corrupted. Try repairing the avast! installation: click START -> CONTROL PANEL -> ADD/REMOVE PROGRAMS -> avast! Antivirus -> CHANGE/REMOVE and select REPAIR.
This solution works on Windows NT, 2000, XP and 2003 only."