This error message may appear for one or more of the following reasons: The notebook BIOS does not detect the hard drive. The hard drive is physically damaged. The Windows Master Boot Record (MBR) located on the hard drive is corrupted.

How do I fix missing operating system?

5 Solutions That May Help You Get out of Missing Operating System Error

1. Solution 1. Check If Hard Drive Is Detected by BIOS.
2. Solution 2. Test Hard Disk to See Whether It Failed or Not.
3. Solution 3. Set BIOS to Default State.
4. Solution 4. Rebuild Master Boot Record.
5. Solution 5. Set Correct Partition Active.

What is a missing operating system?

The error message “Missing operating system” occurs when the computer is unable to locate an operating system in your system. This usually occurs if you have connected a blank drive in your computer or the BIOS is not detecting the hard drive.