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What does Operating System not found mean? - Microsoft Computers & Internet

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If you see this message during power on start up then there are two possibilities.

1. The computer is trying to boot from a drive other then the internal hard drive. Optional bootable devices include:
a. optical drives (CD/DVD/Blue Ray)
b. thumb drives (memory cards, USB drives)
c. external hard drives.

To correct this problem then remove the media (CD, DVD, Blur Ray, memory card or external hard drive) and restart the system normally. The computer should boot into the Operating system.

2. The computer's internal hard drive has been corrupted and the information required to boot the operating system is not readable. There are few different reasons for this including infections and hard drive failure.

If this is the case, please seek professional services to rectify the issue as serious infections and hard drive failure are problems that require advanced tools and methods to fix.

Posted on Feb 06, 2010

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My lap top says my operating system is not found..Someone please HELP!!!
If you know step by step,please my life long pics,files & most precious cargo is all saved in it.My daughter was about to load something into m,y properties & I caught it,stopped her but apperently she did so or?? This is why my kids have there own laptops & this one is mine & mine only.Never to allow used again by another to say,I did so for school vacation & now ,my almost to be 3 yr old son ,loves to play games on the computer,My daughter grabbed mine & now here I am asking for your HHHEEELLLPPPppp...PppLLEeAAssSE
Will this mean I can no longer get my saved files or pics?

I truly appreciate your/ANY help

Posted on Apr 21, 2010

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It could be a problem with your hard drive.

Posted on Feb 06, 2010

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I turn on my laptop and it stared to load slowly and a few minutes later it said that the operating system is not found i thought i that i had to change it from windows xp to 7 but i want to now if that would work plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz hELPPPP me

Posted on Nov 13, 2012

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Found an older laptop of mine ,would like it to work saying operating system not found, does this mean its time to get rid

Not necessarily. This means the operating system is either damaged or missing. If you are not receiving any messages about a failing drive you may be able to simple reinstall Windows from a Windows CD. Online Virus Removal 39 99 Online Virus Removal and Online PC Help

Mar 12, 2015 | Fujitsu AMILO Computers & Internet

1 Answer

Operating system not found

hi goodner,

getting the error "operating system not found" means that the hard drive where the Operating System is installed (i.e. Windows XP, Windows Vista, Windows 7), Cannot be found by you BIOS upon the boot sequence.

When you turn the PC/Laptop, you normal see a screen that flashes flashes with screen that displays the ff:

Primary Master:
Primary Slave:
Secondary Master:
Secondary Slave:

The Primary master should have a value right next to it. If not, either the hard drive is faulty and needs replacement, cable is loose,

If you have a value to it and stil gets the same error the operating is corrupted and needs to be re-installed.

Jan 29, 2013 | Computers & Internet

1 Answer

Operating system not found on my laptop wot does that mean?

Operating system not found simply means that the laptop cannot detect that there's an operating system installed on your laptop.
It's either the hard disk got disabled in BIOS or the installed windows is corrupted. You might need to check in BIOS if the hard disk is still detected. If it is, make sure that on the Boot options, hard disk is selected as the first boot option. If it is, then that means that the windows installed on your laptop is corrupted therefore you might need to install windows using the recovery discs of your laptop.
By the way, to go to BIOS start tapping on F10 once the laptop starts to boot up.
Let me remind you that by doing this it will erase everything on the hard disk.
Good luck!

Sep 12, 2011 | Compaq Presario 1692 Notebook

1 Answer

I just replaced my sony vaio hard drive in my laptop and it says operating system not found and wont finish loading up. what does that mean

It means the Hard drive is empty. Please insert the operating system CD boot through it from the boot menu and install the Operating system followed by Updates, Drivers and applications installation what ever you need..
Assuming you have XP here is the guide to install operating system
Click Here

For Windows Vista Installation Guide Click Here

Apr 07, 2011 | Sony Computers & Internet

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It means that your operating system got crashed and you have to reinstall you operating system by booting from your operating system cd like vista/XP or any install it.

Sep 22, 2010 | Computers & Internet

1 Answer

Ibm thinkpad prompt: operating system not found.

that message means that windows 2000 professional/98 is not installed which means you have a blank computer you need to put the disk that came with it in and install the OS or purchase one but i'll warn you now those disk are not cheap around a couple hundred bucks

Apr 06, 2009 | IBM ThinkPad T21 2647 Notebook

3 Answers

Operating system not found, hard disk not found message showing in IBMT20

On my ThinkPad Notebook Windows 7, I have got "operating system not found" error, to fix problem, Windows Boot Genius helped me finally!

Dec 26, 2007 | IBM ThinkPad T20 2647 Notebook

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