MDT 2010 -- Failure (ERR):68: Ran diskpart to change drive letter - Device unavailable Mick Pletcher • Friday, February 03, 2012 • Failure (ERR):68, MDT This error, which occurs in both MDT 2010 and MDT 2012, is caused when the USB thumb drive is left in the USB port after the initial WinPE ... Read More