Windows 10 Professional went from blue screen with "DPC_WATCHDOG_VIOLATION" to replaced motherboard and now the blue screen is gone, but the D drive "comes and goes" and folders and their contents either show as empty or won't let me edit/save any files within them. The folders and D drive are fine when I boot in Safe Mode.
I have tried Diskpart and removing readonly on the drive and folder security settings to no avail. I have installed much software on the D drive and to rebuild it would be a miserable option.
Any and all suggestions would be greatly appreciated.