ugh. after installing AMD Radeon Crimson Edition Graphics Driver 17.3.1 Hotfix Ive had random driver crashes on my prebuilt tower... fine, Ill just roll it back... except teh Roll Back Driver button is greyed out, and when I uninstalled it Windows put a driver back on its own. I keep getting this:

USB Audio Device Properties
Device status:
This device cannot start. (Code 10)
{Operation Failed}
The requested operation was unsuccessful.
ive heard of DDU, but people say its dangerous and other ppl say its the only correct way. i just wanna go back to teh driver that wroked yesterday. whats teh right sequence? what am i doing wrong??