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#11
I rebooted, holding down F8. Then I chose booting from the hard disk. after that Checkdisk in DOS started up automatically.
I'm letting it run. It's been chugging away all night, but at least I can see what's going on. It'll probably take the weekend to complete at the rate its going now but I'll be patient and leave it alone. So far, there have been a lot of unreadable file record segments, which seems to be the reason for the slow progress.
If CHKDSK goes into limbo, then I'll do a disk format on Monday and hope the system image backup I've got works.