New
#270
Thanks to all of you for the suggestions. They are all noted for future endeavors. But after my last post, I went back and used Rufus with 18262 build, updated the other drive to Win10 Pro. Then set it up on Fast ring, and it immediately updated to 18312. It took like twenty minutes. Very fast.
A quick run to the rescue usb to fix the boot manager and all is well in Dual boot land.
Thanks for all the help though. It feels good to work through a problem like this. Haven't done it in a while.
Funny thing is, now that I've done this, I don't have the crackling popping sounds on either partition now. Very strange! Somehow, doing all this seems to have fixed the old build, and has no problems on the new one. The never ending story of weird windows tales...