Upgrading XPS 8500 to Windows 8

I am trying to upgrade an xps 8500 to windows 8 pro. It's an i7 system with 16 gig RAM. It was running windows 7 64 bit.

I made the first upgrade. It seemed to work fine. I updated drivers but when I attempted to add the windows media center the system failed -- on reboot it indicated the update could not be made and the previous version of windows 8 pro?had been restored. I tried again, and this time it indicated that there were corrupted files and the system could no longer boot (error was 0xc000021a). It was not able to fix the disk issue automatically.

With the help of Microsoft I created a windows 8 pro?boot drive on USB. At first the?software would not even recognize a drive on which to install the operating system. That was resolved, and I was able to install windows 8 pro. But now every time I restart, the system goes back to the original problem (corrupt files), meaning I have to reinstall windows 8 pro, and so on. I have formatted the HDD as part of the installs: Partition 3 of Drive 0 (the other partitions are: Drive 0 partition 1 (1 meg used)?OEM (reserved), partition 2 recovery (8.2 meg used) and drive 1 29.8 meg unallocated.

Windows installs updates (22 in number) automatically on restart, and these may be the source of the problem.

I have checked the drivers. They all seem up-to-date. The Bios is A09 (I think,?in any case?it is the latest version).

Any thoughts would be appreciated. This is driving me mad.

BTW, Dell has been no help at all, since apparently it does not support windows 8 upgrades (something to keep in mind if you are doing an upgrade).

Source: http://en.community.dell.com/thread/20273647.aspx

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