I have a Dell Dimension E520 that will not boot to Windows. The problem began after changing the Bios Drives option from the Default "RAID On" to "RAID auto detect/ATA". After the change over the system will show the Windows Spash for a second the go to Blue Screen Stop Error 0x0000007B (0XF7A0b524, 0XC00000034, 0X00000000, 0X00000000).
Unfortunately I did not notice the pop up message when making the change that doing so may render the system inaccessible and may require a system restoration. When changing the BIOS option back to the Default "RAID ON" setting there is a "Boot Device Not Found" screen displayed.
I checked Dell's and Microsoft's knowledge bases and no solution was found. As recommended by the Blue Screen I ran a chkdsk with both /F and /R options with no success.
After speaking with Dell Tech Support the conclusion was that System Restoration was the only solution.
Before Giving up I again Returned the BIOS option to the default "RAID ON" setting. When booting up I pressed F12 wich took me to the Chose Boot device screen instead of the "no boot device found" screen. I selected the local hard drive and was prompted for the Administrator password. After entering the password I was able to boot to Windows. So the system is still functional and accessible but only by going this route.
Does anyone know of a way to avoid doing a system restore on this machine?