avast! FAQ

Browse the avast! FAQ database to solve your issue or answer hot questions. If your problem still isn't resolved, please check up our avast! support database.


How to uninstall avast! Antivirus?
What does the Message "Invalid file signature. Error 2000000B" mean?
Can I use avast! and Norton, McAfee, Kaspersky at the same time?
How to deal with the "Last encountered error: The package is broken." problem?
Why the "Server is down" during avast update?
How to upgrade from Avast Home to Avast Professional Edition?
Why my Avast License Key is too long?