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Computer turns on and then "missing operating system" comes up immediately after.

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Something is most likely wrong with your hard-drive. If your OS is XP, then see the following link, if anything else, then please let me know. Microsoft is actually a very good source for error messages and steps to take when you get a problem, so please have a look at this link and let me know if you have any problems, questions, or concerns while doing this and I would be happy to help answer them.

http://support.microsoft.com/kb/321626

good luck

Posted on Jun 04, 2008

  • Benjamin Patri
    Benjamin Patri Jun 04, 2008

    Is there anything to suggest why you might be getting this error? Please update us with any details about your computer that you may know. thanks

  • Benjamin Patri
    Benjamin Patri Jun 08, 2008

    If you are satisfied with your experience here, then feel free to provide me with some feedback by
    rating my solution. If you need any more help, I would be glad to
    assist you, just ask.





    Thanks for your time and service and I hope you have a Great Day!

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What is the maker and model of your computer?

Posted on Jun 04, 2008

  • Matt Jurach
    Matt Jurach Jun 04, 2008

    Assuming that this problem occurred suddenly (meaning that it worked fine until today when you turned it on and saw this error), my first thought it that you have a failed hard drive.

    You can enter the BIOS setup to check this (the process for this would depend on the type of computer you have.


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1 Answer

Error message "NTLDR is compressed" how to fix it


When NTLDR is missing from your operating system it means that there is a problem with your boot loader, a bootstrap process that begins when you turn on the computer. A missing NTLDR means that your computer cannot boot to the operating system. This issue is only a problem on computers running Windows XP or previous operating systems as Windows 7 and Vista don't utilize NTLDR. Loose or Faulty IDE/EIDE hard disk drive cable. Failing to enable USB keyboard support in the BIOS. Many times this error is caused when the computer is attempting to boot from a non-bootable floppy disk or CD ROM First verify that no Floppy Diskette or CD is in the computer, unless you are attempting to boot from a diskette. Fixing the missing NTLDR is relatively easy so long as you have your installation disc.
Locate your Windows XP/2000 installation disc and place it in your CD/DVD ROM drive. If you don't have this disk, then you cannot proceed further. Restart your computer. When the computer restarts press any key on your keyboard when you are prompted, "Press any key to enter setup." Most computers are configured to boot to another device other than a hard drive. Since the Windows XP/2000 installation disk is bootable, you should see the prompt. However, if you don't see the prompt you may need to change your boot priority in your BIOS. To do so, enter the system BIOS by following the onscreen instructions upon startup. Then navigate to the Boot Priority menu and modify another device, such as a CD-ROM to boot prior to the hard drive. Then reboot your computer. After you have pressed any key, the Windows XP/2000 setup screen will appear. After loading, press the "R" key to repair the Windows installation. The screen will appear black. The computer requests which installation you would like to log in. Generally speaking, press "1" and "Enter." If you have more than one hard drive or more than one partition, the procedure may be different. You must know which hard drive or partition your Windows operating system is installed in. You are subsequently prompted for a password. If you haven't set up one up, you can just leave the query blank and press "Enter." The phrase "c:\WINDOWS>" and a blinking cursor subsequently appear. Type "copy d:\i386\ntldr c:\windows" (without quotes), where "D" is the letter of your CD/DVD ROM drive (your optical drive may be different, especially if you have more than one). Eject the CD from the drive and type "Exit" (without quotes) to restart your computer. The NTLDR file will be copied from the installation disc to your hard drive.

or If you've started your Windows XP computer and you see an error message to the effect that the "NTLDR" file is missing or corrupted, you've probably also noticed that the computer refuses to boot any further. This is because the NTLDR file is an integral part of the boot process and needs to be restored before the boot process can proceed normally.

Insert your Windows XP disc into your computer. Restart the computer and press any key on your keyboard when the message prompting you to do so appears. Press the "R" key to open the Recovery Console and then press "1" and "Enter" in order to select your operating system. Type in your Administrator password (if needed) and press "Enter." Type "copy d:\i386\ntldr c:\" and press "Enter" and then type "copy d:\i386\ntdetect.com c:\" and press "Enter." Restart your computer and let it boot up normally. Since the NTLDR is freshly restored, the computer boots up properly. Hope this helps.

Jan 16, 2013 | Micro Electronics PowerSpec 6236 PC...

1 Answer

What does BOOTMGR missing mean?


What version of windows do you have? Vista or 7 & you could run the startup repair from a Windows CD.

You might also boot into your windows repair console & at a command prompt type "Bootrec /RebuildBcd"

Attempting a system restore might also be an options.

If none of the above work then I'm afraid you may need to try & backup what information you can by slaving the drive in another system & reloading your operating systems.

Any windows cd that is the same version of your operating system will work as long as you have the CD key on the side of your computer.


Jul 16, 2012 | eMachines ET1161-05 PC Desktop

2 Answers

I have a nasty virus that did much damage to my Inspiron 531 desktop. I am no loner able to restore to previous date and the disks that came with it do have have the operating system on them. How do I...


Put the first disk in that will say operating System.
Turn the computer on and immediately keep tapping F12. This will show a boot menu. Select the CD/DVD Drive.
If prompted 'Press and key to boot from CD/DVD...' press any key.
This will load into the recovery disk follow the on screen instructions to recover the computer.

Apr 26, 2011 | Dell Inspiron 531s Desktop Computer

1 Answer

"MISSING OPERATING SYSTEM"


The hard drive is the problem, it probably has bad sectors corrupting the window file system. The hardware needs to be pulled and tested to confirm the diagnosis.

Feb 04, 2011 | Toshiba V3100 PC Desktop

1 Answer

"missing operating system"


Keep trying in the hopes that it will trigger, and come back- try the F buttons to get to options to try like System Restore, and see if that works (it probably won't, however).
You will have to reload the Restore CD and try to get it working again. Another possibility is that you have a bad hard drive, and will have to buy one and reload the system.
If you can't reload your system, take it into a computer repair shop and have them evaluate the problem. It could possibly be a bad motherboard, but it can be a memory or hard drive problem, and that should be checked before having the motherboard replaced.
Good luck, and hope this helps.

Jan 21, 2011 | Toshiba PC Desktops

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