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Windows 7 Thread, An operating system wasn't found. in Technical; Hi One of the PCs on our network has the following error when I switched it on this morning: "An ...
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    Unhappy An operating system wasn't found.

    Hi
    One of the PCs on our network has the following error when I switched it on this morning:
    "An operating system wasn't found. try disconnecting any drives that don't contain an operating system. Press Ctrl+Alt+Del to restart."

    The boot order is:
    CD/RW drive
    HDD

    The BIOS is seeing the HDD.
    It doesn't matter if I change the HDD to be first it still happens. I'ts not the SATA cable as I have tried changing that.

    Any other ideas folks?

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    if the bios cant see the hdd odds on the hdd has died

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    Have you tried a different SATA port?

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    ... assuming there is nothing plugged into a USB port ?

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    as detjo says, someone hasnt left a memory stick plugged in have they?

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    Quote Originally Posted by sted View Post
    if the bios cant see the hdd odds on the hdd has died
    Yes but as I said, the BIOS is seeing the HDD.

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    Quote Originally Posted by Renfield-64 View Post
    Yes but as I said, the BIOS is seeing the HDD.
    But is there a memory stick plugged in?

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    Given the boot order it's unlikely to be anything plugged into the USB. How old is the machine, does sound like a hard drive on it's way out. Have you tried booting from CD into a WinPE build or Linux desktop? From there you can take a look at the drive, see what's on it. Or add the drive as a slave in another machine. Wouldn't surprise me, if you made it a slave, if windows wanted to reformat the drive...

    Time to buy a new drive and rebuild.

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    if you boot off a windows/linux cd can it see any partitions/data

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    I tried another HDD and it worked ok so it does point to the HDD. I put the HDD into a reader and its empty! It shows 99Mb used but there are no files on it. How does a disk completely erase itself?

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    By someone booting from a removeable disc and formatting it.

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    Quote Originally Posted by Renfield-64 View Post
    I tried another HDD and it worked ok so it does point to the HDD. I put the HDD into a reader and its empty! It shows 99Mb used but there are no files on it. How does a disk completely erase itself?
    Faulty controller. Corrupt FAT table. Had it happen to a 2Tb USB ext drive before last Christmas - with all my backups on, not impressed! Like I said above, time to buy a new drive.

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    Yes but there is no one smart enough in the school to do this.

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    Quote Originally Posted by tmcd35 View Post
    Faulty controller. Corrupt FAT table. Had it happen to a 2Tb USB ext drive before last Christmas - with all my backups on, not impressed! Like I said above, time to buy a new drive.
    Ok, I have a spare one from a PC with a motherboard fault, I'll try that.

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    Quote Originally Posted by Renfield-64 View Post
    Yes but there is no one smart enough in the school to do this.
    Accidental PXE boot gone wrong?

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