Hey there, welcome.
Uninstall MagicISO to remove this driver:
mcdbus mcdbus.sys Tue Feb 24 05:34:07 2009
Then navigate to C:\Windows\System32\drivers and delete pcouffin.sysm, atksgt.sys and lirsgt.sys:
pcouffin pcouffin.sys Tue Dec 05 09:39:30 2006
lirsgt lirsgt.sys Sat Mar 06 14:53:01 2004
atksgt atksgt.sys Mon Oct 20 03:50:38 2008
Reboot and run Ccleaner to clean the registry.
If you still want disc emulation, install PowerISO which is perfectly stable and the emulation is free forever:
http://www.PowerISO.com
Follow these things and it should be fine. Enjoy.