How to Fix and Repair MBR In Windows 10

May 21,2019 • Filed to: Partition Solutions • Proven solutions

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Fixing a Master Boot Record (MBR) may seem like a complicated process without the technical know how but it is very easy if you have a perfect guide. In this tutorial our aim is to show you how to fix and repair MBR in Windows 10.

Overview of the MBR

MBR is a boot sector located in a region of a computer hard disk. This sector is responsible for storing information regarding all partitions in the hard drive. Master Boot Record also serves as loading unit of the operating system in use. An MBR is created the moment you install Windows on an initial partition. If you look through your hard disk, you will notice a file with a size of about 512 bytes. That file is your MBR. A damaged MBR makes it impossible to boot Windows and there are so many issues that can lead to MBR damage. Some of them include

How to Fix and Repair MBR

To fix and repair MBR, here is a list of quick fixes. Each method has a detailed explanation for easy understanding. Use any of them to fix and repair MBR.

1. Startup Repair via Windows Automatic Repair

When you boot your Windows, it detects issues if there is any and once it does, it enters into what is called an automatic repair mode. You will see this message

“Your PC did not start correctly”

Select the Advanced Options – Troubleshoot and Startup repair to correct issues.  The Startup tool will work on the issues automatically after which your Windows  will restart again.

2. Use Command Prompt Via Windows for Automatic Repair

If Startup does not fix the problem or you want a fast process, you can apply a direct approach by using command prompt through Auto repair. If an issue has been detected by Windows 10, the Repair screen will pop up.

Click Options – Troubleshoot– Command Prompt

To complete the repair procedure, use bootrec.exe to repair MBR. Bootrec.exe is highly recommended because it has a wide range of system commands meant for recovering boot processes. This tool also serves as an installation base for Windows.

Under each Command system will notify you if it is successful. If you see an error instead, type “bootrec.exe /rebuild cd” then tap Enter. This command will rebuild Boot Control Data.

This process will repair all MBR problems

3. Fix MBR Issues using Gparted Live

Gparted live is a Linux enabled software for partition management. This software is very effective in fixing MBR related issues. To use Gparted, here are the steps

For corrupt MBR, insert the Gparted media into device. Switch it on open boot selection menu. When the menu comes on, look for Gparted Live as a bootable source. Click on it and leave it to load. Change the default language to your preferred language.

Testdisk will perform a quick scan on your drive to identify primary Partition. The Partition to look out for is one with “*”.  This primary partition contains the corrupted MBR. If you can’t find it, conduct a Deep search for it. Gparted live will also provide you with a list of errors found.

After you are through, close Terminal, log out Gparted and shut system down before you remove Bootable media. Only after doing this should you reboot  PC

4. Fix MBR Issues Using Boot Repair Disk

Download a 33-bit or 64-bit  of Boot Repair Disk. Tick the Gparted Icon. Now, write disk image to bootable media. Download UNetbootin too

Remove bootable media once you are done and shut down system.

Fix MBR with Boot Repair Disk

When boot repair loads, choose Terminal from Taskbar, type in fDisk -l then tap Enter to view partitions in the drive

We understand that many of our readers find it difficult to fix a faulty Master Boot Record hence our decision to address the issue using some of these technical solutions that have proven to work every time they have been used. If a particular solution does not work, try the next one until you find one that fixes the problem.

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