A boot scan is an effective feature offered by many antivirus programs that can eliminate malware that can’t be removed by normal methods. This type of virus may be hidden in the boot sector or encrypt files, and is generally more difficult to remove what does a boot scan do than a normal runtime scan. It is also very important that you make sure to make use of an antivirus that is able to run a boot check as this type of virus is not only more difficult to detect but it can also be extremely harmful.

Avast’s Boot Scan is a very effective way of checking for hidden threats. It can detect threats that are usually missed by runtime scans and remove them without disrupting Windows operating. It can take some time to complete the scan because it will have to analyze every single file on your system. It is a good idea, therefore, to disable any non-essential programs on startup and disconnect any external storage devices. This will allow the program to focus on internal files. You can also schedule the scan to run at a specific time that you will not be using your computer.

To enable Avast’s Boot Scan, first you have to launch the antivirus program and choose the settings menu. Select the Protection tab in the settings menu. Then, select the Boot-Time Scan tile. There you can select you want to enable a full or quick scan, download the latest definitions, and then set the actions to be performed when a threat is discovered.