MBAR System Scan Hang

[Agent00C4]

MBAR seems to hang frequently while scanning System. When it does hang, canceling will bring up the cancel scan prompt but MBAR won't close. Closing it using either the corner button or double clicking icon also brings up the stop scan prompt. Using taskmanager to kill the process gives me an access denied error despite running MBAR on my own account as an administrator. Signing out was the only way to kill it as it was stealing my CPU. After scanning again, it seems to hang on "C:\WINDOWS\SYSWOW64\Com\comadmin.dll" on Windows 8.