How to Rebuild MBR | Fix Damaged MBR

Daisy updated on Dec 12, 2018 to Partition Master Guide | How-to Articles

You may never feel strange to those error messages: "Operating System not found" or blank screen without any message when you boot the computer? Sometimes you may corrupt Windows' MBR (Master Boot Record) unintentionally and come with the problem failing to enter the system. In this situation, to rebuild MBR rather than reinstall the Windows will be much more convenient and time-saving.

EaseUS Partition Master has already offered the function to rebuild MBR in the case of boot failure due to MBR problems. Please see the following step-by-step instructions to rebuild MBR.

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 Windows 10 is supported

How to rebuild or repair MBR with EaseUS Partition Master

 

Step 1: Create a WinPE bootable disk.

1. Download and launch EaseUS Partition Master on a new PC which runs the same system as yours.

2. Click "WinPE Creator" on the toolbar. And select to create the bootable disk on a USB drive. If your computer has a CD/DVD drive, you can also create the bootable disk to CD/DVD.

3. Click "Proceed" to finish the process.

create a bootable disk

Step 2: Rebuild MBR.

1. Connect the bootable USB or CD/DVD to your PC.

2. Press "Del" when you are restarting the computer. Boot your computer from "Removable Devices" or "CD-ROM Drive". And then EaseUS Partition Master will run automatically.

3. Right-click the disk whose MBR is damaged. Choose "Rebuild MBR" to continue.

rebuild MBR

4. Select the type of MBR with the current operating system. Then, click "OK".

rebuild MBR

5. Click the "Execute 1 Operation" button at the top-left corner and click "Apply" to build the MBR. After that, your computer can boot normally again.

rebuild MBR
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 Windows 10 is supported

This rebuild MBR feature can fix master boot code problem, but it can not solve your problem if the Windows Operating System files are corrupted. Besides, creating a WinPE bootable disk is unavailable in EaseUS Partition Master Free, which can help you access and manage your computer disks/partitions when your OS cannot boot.

 
 

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Frequently Asked Questions

Why Choose EaseUS Partition Master?

"I've used Partition Master Professional many times to create, delete, format, move, rename, and resize partitions."PCWorld

"Partitioning tools have come a very long since the days of complicated command line utilities and EASEUS Partition Master is one of the most advanced programs available."TECH ADVISOR

"I love that the changes you make with EaseUS Partition Master Free aren't immediately applied to the disks. It makes it way easier to play out what will happen after you've made all the changes."Lifewire

Will the "Migrate OS" feature transfer the Windows system files only or the whole C drive?

To ensure that the migrated system will boot normally, the Migrate OS feature will transfer all the files in the system and the boot partitions. Generally, the boot partition is the C drive so the transfer will include all the files in C.

Does EaseUS Partition Master license apply to multiple computers?

The license of Partition Master Professional and Server editions can be used on 1 computer only, while that for for the Technician and Unlimited editions can be used on multiple machines.

What is the difference between EaseUS Partition Master Trial version and the Free version?

Free is for home users only, with most basic functions available such as partition resize and clone. While trial can help you understand how this product works and test what a full license can do on a business or server OS machine.

Will it cause any data loss after resizing the partition in EaseUS Partition Master?

Generally, it will not cause any data loss or boot issue by resizing a partition. However, in order to protect your data, we suggest that you backup the partition before resizing, in case of any unexpected situations such as power outages, computer hardware failures, etc. You can use EaseUS Todo Backup to backup the partition and its trial version is fully functioned for 30 days.

What should I prepare before resizing the partition?

On the partition that is going to be operated, there might be some files being occupied by other programs. To ensure a successful operation, we suggest that you close all the unnecessary software before resizing that partition. Otherwise, EaseUS Partition Master will detect the partition being locked by the other software and require a reboot to resize the partition under boot mode.

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About EaseUS Partition Master

All-round disk & partition management software for personal and commercial use. Let it manage your storage drive: resize, format, delete, clone, convert, etc.