Step 2: Find BIOS and enable the default setup option, including Load Optimal Defaults, Get Default Values, Load Optimized Defaults, Load Setup Defaults, and so on. You can try to set BIOS to default settings to solve the problem. Improper settings or incorrect BIOS settings may also cause the issue 'operating system not found' in your PC. You should contact your hard disk or computer manufacturer for a replacement as long as these devices are under warranty. You may jump to Solution 3 to reset BIOS to the default state. Step 3: Then select "Hard Drive Self Test" > Press "Enter" to start the test. Step 2: Use the right arrow to select the "Tools" menu in the BIOS Setup Utility.
#Windows 7 operating system cd repair option Pc
Step 1: Press and hold "F10" and press the "Power" button to turn on the PC > Release F10 after the PC screen display you with a test. If the system disk information is displayed, it means that BIOS can detect the hard drive and you need exit BIOS. If no disk is shown or displayed as None/Not Detected, it means that the BIOS doesn't detect the drive and you may select None to Auto. Step 3: Try to find IDE Primary Master, IDE Primary Slave, IDE Secondary Master, and check whether they can be detected or not. Step 2: Release F12/F10 when the BIOS Setup Utility is displayed. Step 1: Press and hold "F12/F10" while pressing the "Power" button to turn on the PC. Check if the hard drive is detected by BIOS Note: If the BIOS fails to detect the operating system, you will receive one of the following error messages, which tells the same problem on different operating system versions.Įrror message 1: Missing Operating SystemĮrror message 2: Operating system not foundħ Solutions to Fix Operating System Not Found or MissingĪfter knowing the causes for an operating system not found or missing in Windows, now it's time to apply effective solutions to restore the missing operating system. An incompatible partition is set as active.Windows Master Boot Record (MBR) is corrupt/damaged.The basic input/output system (BIOS) does not detect the hard disk.To be specific, the causes that lead to Operating System Not Found are as follows.
![windows 7 operating system cd repair option windows 7 operating system cd repair option](https://static.techspot.com/articles-info/1764/images/2018-12-10-image-5.png)
Generally, when something goes wrong with the BIOS configuration, hard drive health, or the Master Boot Record (MBR), you can't boot the Windows and will see the mentioned two error messages.
#Windows 7 operating system cd repair option full
Full stepsĬauses of Missing Operating System/Operating System Not Found Full stepsīoot PC from EaseUS Partition Master. Full stepsįind BIOS and enable the default setup option.