USB Noise***Unlikeliest Fix***

I did a search for USB noise,the last thread was a year & a half ago so thought it would be good to post in case anyone else has this problem...
 Recently bought a VERY good  DAC/Headphone/Speaker Amplifier & was going crazy trying to eliminate a TON of noise coming through..
 After trying all the usual fixes without success I kept digging through Google for some answer I hadn't tried...
 Finally finding a suggestion to TURN OFF ALL SOUND the computer was sending to various useless apps..WINNER WINNER chicken dinner!!!NO MORE NOISE coming from the amp...
 SOOOO if your struggling with noise coming from a computer source try this simple,easy fix before spending $ on ferrite chokes or plug in filters like Jitterbugs etc...