How to restore the Windows 7 bootmanager?

I've installed my Dreamspark Version of Windows 8 yesterday, but I got problems with booting my old Windows 7 partition so I deleted the Windows 8 partition. But I've still the Windows 8 bootmanager, who can't boot my Windows 7 repair options of both discs were not able to restore a running bootmanager. At the moment I'm booting the Windows 8 disc and use the repair options to select my Windows 7 OS, so I'm able to boot it.

I hope someone here can help me.
 

Question Info


Last updated March 24, 2018 Views 1,148 Applies to:

Hi rossi,

 

 

Thank you for posting in Microsoft Community!

From your issue description I understand that you are unable to boot the computer.

Do not worry; I am here to help you.

 

 

Perform the following methods to resolve the issue:

 

 

Method 1: Startup Repair from the Windows Recovery Environment (WinRE)

a. Insert the Windows 7 installation disc into the disc drive, and then start the computer.

b. Press a key when the message indicating "Press any key to boot from CD or DVD …". appears.

c. Select a language, a time and currency, and a keyboard or input method, and then click Next.

d. Click Repair your computer.

e. In the System Recovery Options dialog box, choose the drive of your Windows installation and click Next.

f. At the System Recovery Options Dialog Box, click on Repair your computer.

g. Click the operating system that you want to repair, and then click Next.

h. In the System Recovery Options dialog box, click Startup Repair.

Refer the following link for more information:

http://windows.microsoft.com/en-US/windows7/What-are-the-system-recovery-options-in-Windows-7

To know more about “Startup Repair” visit the following link:

http://windows.microsoft.com/en-us/windows7/Startup-Repair-frequently-asked-questions

 

 

Method 2: Rebuild BCD using the Bootrec.exe tool

To run the Bootrec.exe tool, you must start Windows RE. To do this, follow these steps:

a. Put the Windows Vista or Windows 7 installation disc in the disc drive, and then start the computer.

b. Press a key when you are prompted. Select a language, a time, a currency, a keyboard or an input method, and then clickNext.

c. Click Repair your computer.

d. Click the operating system that you want to repair, and then click Next.

e. In the System Recovery Options dialog box, click Command Prompt.

f. Type Bootrec.exe, and then press ENTER.


Refer the following link for more information:

How to use the Bootrec.exe tool in the Windows Recovery Environment to troubleshoot and repair startup issues in Windows

http://support.microsoft.com/kb/927392

 

 

Hope the information is helpful; also feel free to post us if you face Windows issue in future.
We would be happy to help!

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