3TB internal HD invalid dynamic disk external usb
I have a drive that has a corrupt video driver. I need to do a chkdsk scan but win 10 won't go into safe mode.. i cannot use any usb tool to boot.. when i take the drive out and your it externally usb it come u pop invalid dynamic disk i cannot activate. How can i activate and save fix drive.. it passes all diagnostic test..
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Also using diskpart to put back online will I lose date?