JSI Tip 4376. You receive a 'STOP 0x000000ED UNMOUNTABLE_BOOT_VOLUME' message during a Windows XP upgrade?

After the first restart, you receive:

STOP 0x000000ED UNMOUNTABLE_BOOT_VOLUME.

Your original operating system still works correctly.

The error is generally the result of:

1. Using an Ultra Direct Memory Access (UDMA) controller with a 40-wire cable, instead of the required 80-wire, 40-pin cable.

2. The system BIOS is set to force the faster UDMA modes.

NOTE: During a restart, the BIOS may report this condition, but it occurs too fast to see.

To fix the problem, replace the cable.


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