Sure, i am helping you, i don't expect you to be here
Sorry I couldn't give you an easy answer, I wish there was one besides do a fresh install as that does fix it.. painful though.
you can try doing a reset of win 10, that is on the page next to troubleshoot.
why did you mention locking drive? or is that an error from windows as sometimes it locks the drives itself: http://www.thewindowsclub.com/the-drive-where-windows-is-installed-is-locked