Essentials Solution To Resolve Operating System Not Found Error On Windows 10

Operating System not found on Windows is a common problem for the users. The problem mainly appears on the computer at the time of booting up the system. 

Improper BIOS settings are one of the main reasons behind this error. The corrupted boot record is the other reason that might provoke the error. Sometimes, the problem can appear because of corrupted BCD and deactivated Windows partitions as well.

There are numerous effective fixes that can resolve the problem. In this article, we have sorted out the effective fixes that can eliminate the error. 

If you are dealing with this annoying issue, then you should go through our guide. 

Easy Fixes on Operating System Not Found Windows 10 

Here, in this part of the article, we are going to discuss the essential recoveries that can help you to fix Operating System not found on Windows 10. 

Go through the steps that are mentioned below and get rid of the trouble easily. 

Fix 1: Reset or Change the BIOS Settings 

BIOS or Basic Input/ Output System perform specific operations at the time of turning on the computer. Sometimes, an issue may occur due to some misconfiguration in the BIOS settings.

You can fix the problem by resetting the BIOS settings. To reset the BIOS settings you should follow the steps that are outlined below. 

  1. At first, press the necessary button that can help you to open the BIOS menu. This button may usually depend on the computer model. Esc, Del, F2, F8, F10 or F12 ( These are the probable keys, that can help you to open the BIOS menu) 
  2. In the BIOS menu look for the “Reset to default” or “Setup default” option. Select the Reset button, then click on the Yes option. 
  3. Then, click on Exit and save the changes. And check if the problem is resolved or not. 

Fix 2: Reset the Boot Records

The Windows Operating System primarily depends on boot records. There are three different kinds of boot records. You can find in an Operating system such as Master Boot Record (MBR), DOS Boot Record (DBR), and the Boot Configuration Database (BCD). 

The problem can appear in any of the boot records whenever it becomes corrupted. So, fix the boot records to get rid of the situation. 

  1. Use Microsoft’s Media Creation Tool to create the Windows 10 Installation Media and boot up the system. 
  2. Press any of the keys from the keyboard during the boot-up procedure. 
  3. Enter the language, keyboard, and time format in the Windows Setup screen as per the requirement. Then, click on the Next button. 
  4. Click on the “Repair your computer” option and select the Troubleshoot button. 
  5. Choose the Advanced Options from the Troubleshoot window. Then, click on the Command Prompt option.
  6. Type the following commands In the Command Prompt window and hit the Enter button after entering each of the commands:


1st: bootrec.exe /fixmbr
2nd: bootrec.exe /fixboot
3rd: bootrec.exe /rebuildbcd

Lastly, restart the computer and check if this process helps you to resolve the Operating System not found Windows 10 error.

Fix 3: Rebuilt the BCD

BCD (Binary Coded Decimal). The BCD system secures the conversion between the computer-readable and human-readable numerals.  

You can fix the problem by rebuilding the BCD. The steps which are followed by will help you to rebuild the BCD. Go through it. 

  1. At first, boot up the computer while using the Windows Installation Disk. 
  2. Choose the language, time and keyboard input settings as per your required. Then, click on the “Repair your computer” option. 
  3. Choose the Windows Installation Drive and click on the Next button. 
  4. After that, the System Recovery box will appear on the screen. And click on the Command Prompt option. 
  5. After, opening the Command Prompt, write down the following commands and hit the Enter button after entering the command: “bootrec /rebuildbcd”
  6. Press the Y button from the keyboard, if you find any Windows confirmation notification on the computer screen. 
  7. Now, verify the computer to see if the problem is resolved or not. 

Fix 4: Activate the Windows Partition 

The problem can occur if the Windows partitions accidentally get disabled. You can enable the Windows Partitions by following the steps that are mentioned below. 

  1. Use the Windows installation USB or disk. Switch on the computer and boot up the system.
  2. Enter the preferred language, keyboard, and time format and click on the Next button. 
  3. After that, click on the “Repair your computer” option and choose the Troubleshoot button. 
  4. Then, click on the Advanced option and open Command Prompt window by clicking the Command option.
  5. Write down “diskpart” in the Command Prompt window and hit the Enter button. 
  6. Then, type “list disk” and again press the Enter button. 
  7. Thereafter, you will find the list of disks that are attached to the computer and locate the disk number that you need.   
  8. Write down “select disk [number]”. Then, hit the Enter button from the Keyboard.
  9. Type the list volume and press the Enter button. This will help you to show all the disk partitions of the disk that you have selected. 
  10. Establish the partition of Windows which is installed in the system and note down the number. Then, write down “select volume [number]”.

Lastly, type “active” and hit the Enter button. Boot up the system to check if the problem is fixed or not. 

Note: Replace [number] with the number that you have noted down just before.

Fix 5: Perform the Automatic Repair 

Windows Automatic Repair is a built-in feature of Windows Operating System. Windows Automatic Repair helps to repair any kind of technical glitches on a computer. 

This can resolve the problem and the steps which are next to you will help you to run it on a computer.

  1. At first, boot up the computer while using the Windows Installation Disk. 
  2. Choose the language, time and keyboard input as per your need and click on the Next button. 
  3. Click on the “Repair your computer” option and choose the Troubleshooter option. 
  4. After that, click on the Advanced button and select the Automatic Repair option.
  5. Lastly, choose the name of the Operating System and check if the problem remains the same or not.  

Here, in this article, we have tried to provide you the potential solutions that can help you to resolve the Operating System not found

You should perform all of the methods very carefully. If you feel any difficulties while performing these steps, then comment in the feedback section or contact with experts. 

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Nathaniel Villa
Nathaniel Villa
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