Andavari, on Mar 5 2009, 08:53 AM, said:
If the AV produced a slowdown it could be configured to only scan infectable items, versus just turning it off completely. That may have been an issue like ten years ago with just about every AV due to how the old Windows OSes worked, but shouldn't be an issue with XP or newer, at least I don't think.
Not sure if this is worth a mention? however after scanning with "avast" my system always comes up clean, except for 3 files that are large (game map files)
avast describes them as "decompression bombs" they are "zip" files that installed with the game.
Malwarebytes & SuperAntiSpyware don't seem concerned with them.