I have followed all of the prep steps (ATFCleaner, SysRestorePoint, ERUNT, Malwarebyte Anti-Malware) as requested prior to this step, although SysRestorePoint did not work (see below). I had AVG and Spybot previously installed before these steps, so I ran those as well. As a matter of fact, I have been trying your steps and recommendations for about two weeks, but I still have problems. Today, I downloaded AVAST as well. Prior to installing I tried to uninstall the McAfee products I had running. Not sure if I completely removed them though because I still have an icon in my task bar linked to "McAfee Security Center".
Anyway, I installed AVAST, rebooted (and it ran a system scan before restarting Windows). At this point I started over with the prep steps.
1) ATF Cleaner - Successfully cleaned up x number of temp files.
2) SysRestorePoint - Unsuccessful - "SysRestorePoint.exe - Application Error App failed to intialize properly (0xc000007b)"
3) ERUNT - Successful execution.
4) Anti-Malware - Successful scan, several instances of "Trojan.Agent" found and fixed. Also, while running this I received the AVAST audio warning several times.
At this point, I decided it was time to ask for direct help from you. Please help!!