"Missing Operating System": what to do?

A computer is a high-precision equipment,which allows you to perform many specific tasks. In order for it to work, it requires the smooth functioning of a huge amount of software. When you turn on the PC, the BIOS program starts first, which manages all the basic functions and hardware settings. Next, the BIOS passes control to the operating system responsible for working with the data and the entire user interface. Sometimes at this stage of the download there is an error "missing operating system", what to do in this case, not everyone is oriented. It means a failure when searching for an operating system on a disk and can be fixed in several ways:

• BIOS reset to factory settings.
• Restore from the installation disc.

Missing operating system: how to fix it yourself?

In order to get rid of this problem, you may have to try several ways.

BIOS reset to factory settings:

1. Turn off your computer (if it hangs on a black screen, hold the power button for a few seconds to turn off the computer).
2. Now press the power button and after a couple of seconds, press the BIOS setup start button (usually F10, ESC or F2) on the keyboard.
3. After you enter the settings section, go to "Save and exit".
4. Select the "Load setup defaults" option.
5. Click on "Save and exit".
6. The computer will restart if the problem is resolved - the OS will start.

Restoring the bootloader using the installation disk:

1. After turning on the computer, open the optical drive and insert the installation disc.
2. Restart the computer and wait for the download from the installation disc.
3. In the window that appears, click "OS Recovery".
4. Select the OS version you want to restore and click the "Command Line" section.
5. Now type Bootrec.exe / FixMbr and press Enter.
6. Enter Bootrec.exe / FixBoot and press Enter.
7. Restart the computer.

The second method will also allow to correct errors BOOTMGR is missing and NTLDR is missing, which do not allow the operating system to start up normally.