Ran Dell diagnostics and it indicated that there were several drive errors of the following 2 types:
Result Code Block Desc
0f00-1344 21332171 Uncorrectable data error or media is write protected
0f00-1342 21332172 address not found
Note: Dell drives have a small non-dos partition, but I have never seen this cause a scan disk issue.
Is this recoverable... or is the drive trash?
I got to this stage because I could not boot normally - black screen after windows logo
I could not boot into safe mode: hang after reaching file name apg440
I coudl not boot into vga mode: black screen
Saw the threads on apg440 (not encouraging) but also found that if I booted into safe mode and let the machine sit for 2 hours I could finally get a partial screen... reach the RUN window and invoke System Recovery. This got me bootable again, but I was concerned and ran full diagnostics... this is where I got the disk error messages and attempted to fix with scandisk.