Fredblan, welcome. The protocol avoid CAPS… you’re not yealling ;D

aavmker4.sys is an avast driver as you can search the board for more info.
Solution and explanation here:
http://forum.avast.com/index.php?topic=13069.msg110059#msg110059
http://forum.avast.com/index.php?topic=4042.0
http://forum.avast.com/index.php?topic=12998.0
http://forum.avast.com/index.php?topic=13047.0