Today I performed a full system scan with Ad-aware Free version (latest) and it choked. I remarked that the little Comodo Anti Malware (v.4.25) window on the taskbar was green. I could slowly move the mouse cursor but clicking on whatever had no result.
This happened while Ad-aware was scanning C:\System Volume Information_restore (endless code).
After a hardware reset I got the same result. Ad-aware choked while deep scanning another map.
Then I thought about that green window and stopped Boclean before making a third attempt: this time A-A made a successful scan!
Then a 4th scan just to be sure and with Boclean activated: green window and A-A choked.
Then a fifth scan with Boclean deactivated: A-A scans right.
Using WindowsXP with SP2