I had posted a thread with the same problem I have now thinking I had solved the problem. Essentially my computer will randomly bluescreen every few months with the error code CMUSBDAC.sys The solution given was for my blue snowball microphone which seemed to be causing the crash. I did the fix and all was well. Until today when it happened again, specifically as I was unplugging an Xbox360 controller out of the usb slot in the frront of my pc. However, I have a minidump file of the crash as the previous solution requested me do. I would appreciate if anyone could read this and help me find a solution to this problem. Ill link the file here: https://mega.nz/#!ytdRHYDC!s353McgqqRBn5dwFghxuTA1nEmXZdPp6CacLydr_4bA