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Operating System not found


Brenty e2
8 12 United Kingdom
27 Dec 2007 12:55PM
Hi

I wonder if anyone can help me. When I switch on my laptop instead of it booting up I get a white message on a black screen saying "Operating System not found". The computer seems unable to access the hard drive to start.

Has my laptop had it or is there anything I can do?

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conrad e2
10 10.9k 116
27 Dec 2007 1:00PM
Did you leave a CD or floppy in any of the drives that are checked by the system on start-up? If so, it may have believed you were trying to start it up from that drive, and since it most likely wasn't a system disk, this is a logical error message to get.

If that's not it, why don't you try to start the notebook from a system disk in one of your drives, and then try to access the hard drive (C). If you can't access the hard drive that way, your hard disk probably needs replacing.
Henchard e2
9 2.7k 1 United Kingdom
27 Dec 2007 1:03PM
Google for

"Operating System not found"

lots of info like this

Which includes this info (presuming it's Windows?) Although I haven't a clue if it will work!!! So tread carefully.

Boot from the Windows CD. It has three options: Recovery Console, Repair Installation, and Normal Installation.

Try the Recovery Console. It should scan your hard drive and detect Windows installations, and ask you which one you want to examine. It may ask for your administrator password. Then it should give you a C: prompt. Get a directory (dir) and if it looks okay (no garbled text) and reports the free space, things are probably okay.

If you get to this point with no trouble:

At the C prompt, say FIXMBR . I'm not sure what kind of output it gives, but it should rewrite your master boot record. Then at the next C prompt, say FIXBOOT then enter. That'll rewrite your partition boot record. The two boot records are the first steps to booting the operating system.

Now, try booting without the CD. If it boots, then the FIXMBR and FIXBOOT worked. But I suspect you'll have the same error.

So, boot from the CD again, and this time, press 'Enter to Setup Windows now' or some such. Then, you want to perform a Repair Installation. I think it'll only give you that option if it thinks it can do it (it sees your existing Windows). Failing that, it will probably want to format the drive or obliterate Windows.

After you tell it Repair Installation, it'll give you that yellow bar that usually means it's formatting the drive, but it'll just be examining it. And if it goes well, it will reinstall Windows while maintaining your applications, data, and registry settings.

Choose your options carefully, as it'll give you little clues in the beginning of the install process as to whether it really understands that you want to repair, rather than wiping out Windows.
Brenty e2
8 12 United Kingdom
27 Dec 2007 1:09PM
Thanks Conrad but there wasn't another disk in the drive. I will try your option and look up the problem on Google as Henchard suggests.

Many thanks for your suggestion and swift replies.
uggyy e2
9 2.1k 9 Scotland
27 Dec 2007 1:19PM
Before you start messing with it.

Do you have important data/photos and the likes on it?

If you do and dont want to loose that data I would think on removing the drive and putting it in a USB caddy, you can get one of these for about 10-20 pound and put your drive in it. This would allow you to take anything on it off it to another PC, just like a plug in external drive.

I would then do a full disk check of the drive with it plugged into the PC you are prb using the now if possible. There may be a drive problem thats cuased it to give this error.

If it works then you can try all or the above or else clean format it and re-install windows. I would still be worried about what cuased this in the 1st place though.

Tommy
Brenty e2
8 12 United Kingdom
27 Dec 2007 1:36PM
Thanks for the info Tommy. I now have a number of options thanks to you guys. I think the best thing to do will be read these very carefully and do whatever I finally decide on very carefully and slowly.

I'm a lot further on than I was this morning.
StuartAt e2
10 1.0k 6 England
27 Dec 2007 2:15PM
Another thought is that the BIOS may have somehow got corrupted so that the system isn't trying to boot from the main disk at all. When the machines starts, you should have an option to enter 'setup' or something similar. This should give you various boot order options (e.g. Floppy disk, CD, hard drive). If the hard drive isn't one of the enabled options, that might explain the problem?

If you have checked your drives for disks, have you got a card reader hooked up to the machine and is it trying to boot from that?
Brenty e2
8 12 United Kingdom
27 Dec 2007 4:14PM

Quote:Another thought is that the BIOS may have somehow got corrupted so that the system isn't trying to boot from the main disk at all. When the machines starts, you should have an option to enter 'setup' or something similar. This should give you various boot order options (e.g. Floppy disk, CD, hard drive). If the hard drive isn't one of the enabled options, that might explain the problem?

If you have checked your drives for disks, have you got a card reader hooked up to the machine and is it trying to boot from that?



Yes I do get the option to go to set up F2 but having seen the the array of options I am a little worried that I might make things worse by changing these settings.

Thanks for the info anyway.
uggyy e2
9 2.1k 9 Scotland
27 Dec 2007 7:41PM
You wont make it worse playing with the boot options. As said look for the one that looks like your hard drive, IDE 0, IDE 1.

Its your laptop. Another thing, you dont have a memory card in it per chance? Some laptops will allow you to boot from a USB port, its unlikely though this is the problem.

When its booting. can you hear the drive at all? As in clicking sounds? This can be a sign of a bust hard drive.

Keep us posted how your getting on....


Tommy
Brenty e2
8 12 United Kingdom
27 Dec 2007 8:25PM
The hard drive just isn't coming on. I have made some changes to the settings but it just now gives out an intermittent beep.

Thanks to everyone who has offered advice.

I will have another go in the morning.
27 Dec 2007 10:04PM
You can check what your bios beep means here


You could try going into the bios and selecting "load failsafe defaults" in case something has been changed?
good luck, Adrian
User_Removed 10 825 Lithuania
28 Dec 2007 4:49AM
...more on beep codes... here
My laptop was showed the message “Operating system not found “ in a black scream with white letter in the left side for 8 days, even I took it to IT specialise people but they pres F2 and the bios request a passwords that was not the one I used to access my laptop.
So I take the laptop back home. I took a screwdriver turnaround the laptop and take all the screws from the laptop. There is one that connect the keyboards so I remover too and I remove a last one that is under the keyboard. I realised that a one of the connections was unplug. I did NOT touch the hard drive. I just plug in back that connection and my laptop start to work as normal. Even the work that I was working was there. II hope this can help any body.
Regards,
Claudia Elizabeth Jara González

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