Recently, I set my screen saver to Avast, which does an AV check when the screen saver appears. Two trojans were found using that method, but when I set it for a boot scan, and also did a thorough (all files and archives) scan weeks and days earlier, the trojans were never detected. The files were several years old.
Is there a default setting in the Avast screen saver scan that I’ve missed in my other scans. or is the setting the same as my thorough scan setting?
Is there a way to tweak the boot scan?