How To Fix Operating System Not Found or Missing Operating System

Operating System Not Found or Missing Operating System

Step 1:

Step 2:

Attach bootable USB or DVD into your computer.

Step 3:

After step 2 using the function keys (F2, F12 and Delete) enter the BIOS setup.

Step 4:

Then click on Repair Your Computer below the Install Now button.

Step 5:

In Repair Your Computer Open CMD (Command Prompt).

Step 6:

In CMD type “diskpart” then type “list volume”

Step 7:

In list volume, all volumes are shown, then find your system volume where the windows are installed and type “select volume ###“(system volume C) shows on CMD. Ex. select volume 3

Step 8:

After selection of volume, type “ACTIVE“. Your system partition is active now. Type ”exit” to leave diskpart and again ”exit” to close cmd. That’s it now RESTART your computer.
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