My desktop problem was do not re booting - Computers & Internet

XPS 8500 Desktop booting fails - General Hardware - Desktop - Dell ...

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Dell
Jun 13, 2012 - 16 posts - ‎9 authors
I am sorry to know the concern with the computer. As you .... I have the identical problem on a 3 week old XPS 8500 desktop machine. It seems ... Dell XPS 8500 - Will Not Boot At All - Motherboard ...
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How to Use and Troubleshoot the XPS 8500 ' Dell US

Here is thread that may be helpful...
http://answers.microsoft.com/en-us/windows/forum/windows_vista-system/missing-boot-manager/6d2d2f04-8b02-446c-8045-f3638f2ca600
and this...
http://pcsupport.about.com/od/findbyerrormessage/a/bootmgr-is-missing.htm

to boot up:
1.Restart Your computer Press Delete until BIOS setup appears.

2.Go to Advance BIOS setup then Boot sequence.

3.First Boot Your CD-Rom, 2nd Boot the HDD-0.

4.Save The Settings Then restart.

5)when appear "press any key to boot" then click ENTER button of your keyboard it will automatically boot.

You did something wrong!
Set to boot from the CD as the first boot device or you can press F12 and select boot from CD, you will have to press any key when it displays "Boot from CD"
I hope this helped.
Good luck and have a pleasent day.

You have to change the boot order at the bios settings. Just after the screen comes up, before windows start up press (repeatly) the F2 key (depending on the model, maybe F1 or del key) and go to the boot sequence. Here change the boot order as you wish.

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Stelios
direct FixYa link: http://www.fixya.com/users/technical114

You need to get to the Bios through setup (F2) Change boot configuration to boot from CD Rom. Using your Windows Setup disc,Reboot,press R to get to recovery console.From there you can rebuild your boot configuration.

Your cd Rom is also not working properly

Could be a fault on the motherboard, assuming other desktops means your in an office enviroment with the same type desktops, is the unit still under warrenty?

Check the floppy drive to see if there is a disk in it....if so, remove it and try booting up the computer again.

Open up the desktop and replace your CMOS battery, or atleast test it and see if the re-booting stops. If not and you have your XP installation disc you may have to do a system repair, start your pc with disc in and press enter when prompted, but make sure that your cd drive is set up as first boot in the bios.