The Avast Boot-time scan is a powerful tool, do not overuse it, only utilize it at those times if/when you have good reason to suspect your machine may be infected. *If the scan stops and waits for an action to perform, do not use the “ Yes” or “ Yes all” options for system files – always press number 3 on the keyboard to skip moving the file. You start the scan and toddle off to bed only to wake the next morning to find it stalled while waiting on user input. While this is certainly a prudent precaution it can also be a pain in the butt.

The scan will not start back up again until that answer has been forthcoming. Avast Boot-time Scan: Important notes! System files and ActionsĪvast’s Boot-time scan does generally take a long time to complete, often around 2 to 4 hours, depending on numbers of files – and here’s the rub – if a system file is flagged as a threat, even though the action parameter has been preset, the scan will pause and ask the user to confirm an action.

How to boot scan avast