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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.

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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  • 555 Answers

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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Sony bio 2006 home computer, won't go past the (c

Try to Repair your Operating System using Bootable CD.
Your all files and Saved Data will be safe and will not harm by repairing step.
Which Operating System you have on your Computer? Windows or Linux?

Apr 22, 2013 | Computers & Internet

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 Computers & Internet

1 Answer

How to solve this problem """operating system not

Hi sirajshah_mu,

This error message will appear if the Computer is not detecting the internal Hard Disk Drive or when the Operating System is missing.

First, please try resetting the BIOS to the default values to check if that resolves the issue. To reset the BIOS to the default values, restart the Computer, press and hold the F2 Key to access the BIOS, then, please press the F9 to load the default values and F10 to save and exit. After that, please try restarting the Computer to check if that work.

If the issue still persists, please check if the Hard Drive is listed in the BIOS main window. Also, please try disconnecting all the external Devices connected to the Computer.

If the issue is not resolved after performing the above steps, you may need to re-install the Operating System in the Computer using the Recovery Partition. It is required to have the exact model # of the Computer to provide the necessary information on Recovery. If the issue still persits, please let me know the results of the above steps and the exact model # to assist you further.

Hope this helps.

Please free to get back to me if you have any further questions or require further assistance.

Thank you for using FixYa.

Dec 17, 2010 | Sony VAIO Notebook

2 Answers

Windows cannot find regsvr.exe at start up

Probably the easiest way to resolve this issue is by following the steps outlined below.

1. Shut down the computer.
2. Turn the computer on and immediately press F8 repeatedly until you get the "Advanced Boot Options" menu.
3. use the down arrow to select "Safe Mode" and press enter.
4. Window is should start with a "Help" window.
5. In the help window there is an underlined "What is System Restore?"
Click on that and "Click to open System Restore"
6. click on that and a new window comes up recommending restoring to a previous state.
7. Click ok and the operating system should restore your computer successfully and reboot into normal mode.


Jul 31, 2010 | Microsoft Windows XP Professional

2 Answers

When I turn my PC on the "Alalog Power Saving Mode" window comes up on my LG Flatron W1942T monitor immediately. I cannot do anything else as PC is then frozen. I turn it off by removing power source.

This may be due to your Windows operating System.
1. You may need to clear some "temp folders"
2. LCD screen don't usually lock the operation unless there is a conflict with the video card.
3. check the video card settings to see if you don't have something check that will cause a halt to the system.
4. You will need to look at the instruction manual for something you missed in the set for your LCD or video card.

Mar 23, 2010 | LG Flatron L1750S 17" LCD Monitor

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