That was one of the first things that I mentioned - the disk looks fine. In fact, I've already been able to copy all of his personal files off to an external drive. Thank you very much for all your...

Sorry, that didn't help. I also tried booting off of the installation media again after deleting the partition and rebuilding the MBR. Nope.

Thanks again. I did everything that you asked but it didn't help. I would continue the upgrade if I knew how, but I think that something may have become corrupted. I'm still open to suggestions...

When I boot from installation media, I get a dialog box with the following message:

It looks like you started an upgrade and booted from installation media. If you want to continue with the...

The bios is set to boot from the HD first. Tried both IDE and AHCI modes - same result. Ran disk check from a Win 10 PE environment - no problems found. I ran SMART tests on the HD and it checks as...

Hi,

A friend turned his computer (Dell Vostro) on this morning to find that it had tried to upgrade itself to Windows 10. Now when it starts, it gets an INACCESSIBLE_BOOT_DEVICE blue screen and...