no, I am good; I have all those "emergency" things in order, but didnt need them.
I just shut down the pc, unplugged it from the battery backup, waited a couple of minutes, plugged in back in and it booted normally..
yeah, I know deleting the icon cache shouldn't have caused any thing like a total black screen on reboot, but, anything is possible with a computer!
I wish there was some way to get these damn icons back; it started several insider builds ago, when I uninstalled window blinds from my machine, and after that, the issue started. I assumed that after 5 or 6 builds, and then the "final" release, it might fix itself, but it hasnt. I dont want to do a clean install just to get them back, since everything else is running perfectly at this point..