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How to fix MBR in Windows 7?

It can happen that your MBR will be corrupted/damaged after a cold-start of your PC and then you need to know how to fix the MBR in Windows 7. Usually, you will encounter the dreaded error message: “Operating System not found“. There’s a really easy command that can be executed via the command line utility to fix it. But how to access the command line tool without operating system in the first place?

Fix MBR – Operating system not found

1. Step Start PC, Insert Windows 7 DVD and hit a key when asked to. You may have to change your boot order to boot from DVD!

2. Step Click on “Repair your computer“:

Windows 7 Repair your computer

The installer will scan your PC for previous Windows installations:

Windows 7 System Recovery Options

Select Operating System

4. Step Click on Command Prompt

Windows 7 System Recovery Command Prompt

bootrec.exe /fixmbr

Fix MBR (Operating system found/logged on)

1. Step On boot up press F8 and select “Repair your computer”.

2. Step Next, Windows 7 will automatically search for errors. Let it check for errors and when it’s done close the window. At the bottom you will see the “Command Prompt” tool. Click on it.

3. Step Enter the command

bootrec.exe /fixmbr

Alternative Solutions: Auto-Repair Your PC And Drivers

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Published: Tuesday, January 19th, 2010 Last Modified: January 19, 2010

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