New
#31
That does make your W10TP drive inaccessible from the other drive.
The register key added in W10TP was changed on its own to show "C:" instead of "E:" drive. Not sure if that was like that yesterday after a few reboots, etc. or this morning after four updates requiring a restart??
Just remembered that no restore point was created prior to the update which I've seen it do before. Wondering if that entry changed caused that?