Question about Acer Aspire 7551-7422 Amd Phenomii X4 N970 3.5GHz 4Gb 500Gb DVD/-Rw 1

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Operating system not found

Cannot find operating system

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If your bios detects the hard drive, your Windows installation may be corrupted or you may have a virus or spyware problem. I will either boot the computer with a Hiren's boot disk ( Can purchase on Ebay), load Mini XP, and look at the contents of your C: drive to see if your programs are there. Also, you can look for a RECOVERY partition on the drive which can usually be accessed by pressing the F!! or F12 key when booting your compuer. You can also keep hitting the F8 key when booting to get a black and white menu with REPAIR your computer option. This will often lead to the Recovery function (You will lose any personal data that was on the computer.). I also take the drive out on occasion, install it in a desktop computer as a slave drive and look at the programs on the computer. You can run antivirus/antispyware programs on the drive if needed. You can also copy off documents, music if you can access the users directory. All of this can get complicated.

Posted on Jan 22, 2015

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First - re-seat the hard disk and reboot the computer. If the computer does not boot up then reboot and go into the BIOS configuration to see if the BIOS detects the hard drive. If it doesn't detect the hard drive then it could be faulty.
Then the hard drive needs to be replaced in the computer/laptop, Windows installed and the computer or laptop's device drivers plus your programs etc. to get a functioning computer/laptop again.

Posted on Jan 08, 2013

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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.

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