Solved Operating system not found

January 1, 2014 at 18:33:56
Specs: Windows 7
I did a stupid thing. That being said, a friend replaced hard drive on a sony vaio--Seagate 500gband had the computer working. I thought I could get some of the preinstalled programs added and put in disc one of the recovery discs originally made when I go the computer. Now says operating system not found. What can I do?

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#1
January 1, 2014 at 21:01:09
Did you remove the previously made disc from the drive?

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#2
January 1, 2014 at 23:56:40
✔ Best Answer
That means the system files on the drive the computer is trying to boot from can't be found. It's hard to believe that trying to boot from a recovery disk would cause that. That's the message you get if the drive was empty.

This new hard drive your friend put in--was it booting up to windows OK or was it blank? You might check to make sure the drive's data cable is firmly connected.

As already mentioned, did you try booting up without the disk?


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#3
January 2, 2014 at 17:58:09
Assuming the new drive has a properly installed copy of Windows on it and you messed up the boot partition, just do a Start Up Repair from a Windows 7 install disk, Recovery disk, ro Windows 7 Repair Disk.

You have to be a little bit crazy to keep you from going insane.


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#4
January 4, 2014 at 19:12:40
How do I get a Windows 7 install disc...all I have is the original recovery disc. I am trying hard disk test...takes >400 minutes?


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#5
January 4, 2014 at 21:02:26
You can do a start up repair from a Windows 7 repair disk. You can make one for just the cost of a blank CDr on any Windows 7 machine as long as both machines are 64bit or both are 32bit versions. These disks are very useful. You go to the back up section and the option to make it is there.

You can download Seatools from Seagate's website. Download the ISO version (DOS) and burn a CDr with it and boot to it. Use it to test the hard drive. If you need to return a defective hard drive you will need the results of this test as well.

You have to be a little bit crazy to keep you from going insane.


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#6
January 5, 2014 at 17:24:46
downloaded seatools the ISO version...would not boot...then downloaded the windows version, still won't boot.


I also tried booting with no disc---Operating system not found

Don't know of anyone with a Windows 7 computer, so will have to take to arepair shop

message edited by sclaus1


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#7
January 6, 2014 at 07:10:30
If it would not boot to bootable CD with Seatools on it then the problem is probably hardware related such as memory, power supply (desktop), motherboard. If it booted to the CD then it would have eliminated these possibilities. There is a possibility that you did not make the ISO image into a proper bootable CD though and 'No operating system found' is usually either a bad hard drive or a corrupted boot sector and seeing that usually means that the motherboard, power supply, and memory are at least nominally working. If you can try recreating the Seatools disk or even a bootable Live Linux disk then you can be more sure of this.

You have to be a little bit crazy to keep you from going insane.


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