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That's what I mean... it isn't windows or anything accessing the drive, it's the BIOS detecting and attempting to boot to the drive.
If it fails, it doesn't even try to move on to the greener pastures of the hard disk. Instead, it stops dead, leaving this epitaph: "No-system disk or disk error: replace and strike any key when ready"
However, sometimes, a disk might have been used as bootable disk with a NT boot sector. if the NTLDR file is removed (via a del *.*, etc) then the nt boot preloader starts, but fails to find NTLDR and halts with this memoir: "NTLDR missing. Press Ctrl-Alt-Delete to Restart."
What I mean though it these were brand new floppies, we all had to buy our own you see.
So its kind of like a boot between the floppy and HDD...because otherwise the BIOS wouldn;t know to look on the floppy for NTLDR
the no system disk one is true though, it does just stop dead, though I have seen BIOSes go further with a floppy in.
mysterious..google might help us
and OP...are you still there or are you silently watching from the shadows?