computers volition not boot when the MBR is broken. So how to fix MBR even without Windows seven/8/10 installation CD, DVD or USB Disk is an urgent requirement. Browse this paper, y'all will find the solution.

After a virus assault, I tin can't enter Windows 7 any more, and it seems that MBR has been damaged. Now, I'm eager to know how to fix MBR without Windows seven DVD or CD disc (I simply got the PC with Windows 7 preinstalled, so I don't have an installation disc). Is there a tool to help me complete this operation?

Indeed, if MBR (master boot record) is damaged, Windows will exist unbootable since this kick lawmaking will perform the following actions:

  1. Scans the partition table for the active segmentation.
  2. Finds the starting sector of the active segmentation.
  3. Loads a copy of the kick sector from the active sectionalization into retention.
  4. Transfers control to the executable lawmaking in the boot sector.

Tip: hither MBR refers to the master boot code, non including partitioning table and disk signature.

Well, how tin we repair the damaged MBR in Windows vii/8/10?

If you have a Windows installation disk, such equally CD, DVD, and USB flash drive, fix MBR by doing these operations: cull "Repair your computer" or similar feature and run "Startup Repair". Or execute bootrec /fixmbr, bootrec /fixboot, and bootrec /rebuildbcd commands in Control Prompt.

Merely what if there is no Windows installation disk? Keep reading to become specific steps.

How to Fix MBR Without Windows 7/8/10 Installation Disk

To do this, you demand to employ bootable partition manager. Information technology is a kind of tool that can boot computer and perform partitioning operations like set up MBR without loading Windows OS.

MiniTool Partitioning Sorcerer Pro Ultimate is highly recommended since it comes with the bootable media builder and brings no damage to data.

Firstly, delight buy MiniTool Partition Magician Professional person on a normally running computer.

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Then, download, install, and register the plan to become the window beneath:

rebuild MBR without windows installation disck 1

Hither, please click the Bootable Media icon on the height right to run MiniTool Bootable Media Builder, then refer to the post How to Build Boot CD/DVD Discs and Boot Flash Drive with Bootable Media Builder to create a bootable disc of Partition Magician.

Then, boot computer from the bootable disc to get the chief window of Partition Magician below:

Tip: you may demand to ready kicking guild in BIOS for successful boot from the bootable disc.

rebuild MBR without windows installation disck 2

Adjacent, select the disk whose MBR is damaged and cull "Rebuild MBR" feature from the left action pane. After that, a awaiting operation will emerge on the left:

rebuild MBR without windows installation disck 3

At this fourth dimension, just click "Utilise" to outset fixing MBR, which just takes a few seconds. After the application is completed, please close down the program, take out bootable deejay, and boot estimator from local disk. And so, Windows should be bootable once again.

Now, all of y'all would know how to fix MBR without Windows 7.8/ten installation CD, DVD, or USB disk. For detailed help, please see Rebuild MBR.

Are y'all searching the way to gear up MBR without installation disk? Simply buy MiniTool Partition Magician Professional Edition to do this work now.

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Nearly The Author

Rodin

Position: Columnist

Rodin is an enthusiastic IT writer focusing on Windows trends, disk partitioning management and information recovery. She loves to write and share her idea about the useful tips and tricks on personal computers' maintenance.

If you are looking for methods to improve your computer performance, manage hard drives and recover data from different devices, Rodin can provide reliable solutions for information management.