Many antivirus applications offer a boot scan, which is an effective tool that can eliminate malware that can’t be eliminated by standard methods. This kind of virus can hide in the boot sector or encrypt files, and is generally more difficult to remove than a regular runtime scanner. It is important to use an anti-virus program that can conduct an inspection of the boot sector, because this type of virus isn’t only difficult to identify, but also extremely dangerous.

Avast’s Boot Scan is an effective method of checking for hidden threats. It can detect threats that are often missed by runtime scanning and is capable of removing them without affecting the performance of Windows. It may take a while to complete the scan as it will have to scan all your system files. It is recommended to disable unnecessary programs at the start of your computer and unplug any external storage devices. This will allow the program to focus on internal files. It is also recommended to schedule the scan for times when you aren’t using your computer for any other purpose.

You’ll first need to open Avast and then select the Settings menu. Once you are in the settings menu, you can select the Protection tab, and then select the Boot-Time Scan tile. You can select whether you want to conduct a full scan or a quick scan, add new definitions and configure what will happen after a threat has been identified.