Windows 8 audio clicks and glitches narrowed down to Malwarebytes

Ever since I got my Windows 8 PC, I have been having serious problems with audio.  Basically all sound playback on my system experiences a brief  but frequent click, skip, glitch, stutter, whatever you prefer.  I can reproduce the issue on any sound card or firewire sound interface (devices tested include the onboard Conexant SmartAudio HD, my external Phonic Helix 12, and my Edirol FA-101).  All of them seem to have audio clicks, with the firewire interfaces' clicks seeming more harsh for whatever reason.

Helicopters and Recording Sessions

The other day we were recording the band Flowting Bridge in our Randolph studio, a large garage. We have a decent live room area, and a wall to separate the control room. We were doing live recording with a miked amp, and since there is a back entrance to the live room, we had the bright idea to use the great outdoors as the "amp room". So we put the amp out there with an SM7 on it.

At one point during the day, a helicopter flew over at low altitude (coming in for a landing in town). Fortunately(?) this happened while we were on break. My first thought was, "phew, glad that didn't happen while we were recording..." and my next thought was to BOLT inside and hit record on the console. I ended up with a "field recording" of the flyover, which the boys decided they will use on the album as a hidden track. If you'd like to check out the sample, I uploaded it to freesound.org here. Enjoy:

http://www.freesound.org/people/doctor567/sounds/161579/