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Windows 7: Windows 7 won't boot

23 Dec 2009   #1

Windows 7/Windows Vista
Windows 7 won't boot

Right, whilst I realise there have been many posts on this subject my situation is slightly different. My computer originally came installed with Windows Vista 32-bit and when Widows 7 Ultimate 64-bit was released I wanted to upgrade. Obviously I had to do a custom installation as you can't simply upgrade from a 32-bit to a 64-bit system. To get around this I just installed windows 7 on my other (empty) hard drive. For a while everything worked fine and I had the option to either boot Windows Vista or Windows 7 on startup. I found that I was satisfied with Windows 7 and wanted to get rid of Vista to free up some hard drive space. I used Paragon Partition Manager and Formatted the old Vista drive. I presumed that the system would have no trouble booting Windows 7 as the option had been there when the dual boot was foolish of me. When I restarted the computer text appeared saying "no items to display". Initially I thought that the computer was just trying to boot from the clean harddrive so at the next startup I went into boot options and selected the other drive. I was then informed that "BOOT MGR" was missing and thus it couldn't load. Having misplaced the Windows 7 installation CD I ended up just reinstalling the old Vista OS. Is there any way I can get Windows 7 to boot properly again without doing a full reinstall?

P.S. After going to Computer -> Properties -> Advanced System Settings -> Advanced Tab -> Startup and Recovery Settings and clicking on the Default Operating System drop down menu only Windows Vista was present.

Any help would be greatly appreciated, thanks.

My System SpecsSystem Spec

23 Dec 2009   #2

Windows 7 Ulti. x64

Welcome to SevenForums rickwoolf123
You can try to do a start up repair. You will need your install disc.
Startup Repair
My System SpecsSystem Spec
23 Dec 2009   #3

Windows 7/Windows Vista

Thanks Ill hunt around for the ever elusive disc.
My System SpecsSystem Spec

23 Dec 2009   #4

Microsoft Community Contributor Award Recipient

Vista x64 / 7 X64

Hi Rick,

Make Sure the 7 partition is marked Active.

D/L a recovery CD

Make 7 HD first in Bios boot order - boot the cd and run startup repair 3 times.
My System SpecsSystem Spec
23 Dec 2009   #5

Windows 7/Windows Vista

Thanks SIW2 as I still can't find the damned Windows 7 installation disc this seems like a good option. Will let you know how I get on
My System SpecsSystem Spec
23 Dec 2009   #6
Microsoft MVP


As SIW2 advises, set your Windows 7 HD to be first HD to boot in BIOS, after DVD.

Then boot your Windows 7 DVD or Repair CD, in Recovery tools open a Command Line to mark the Windows 7 drive active:


SELECT DISK # (for Windows 7 disk)

Now return to Recovery tools list and run Startup Repair 3 separate times to rewrite the MBR to Windows 7.

You may need to unplug the Vista disk to achieve this if it interferes.
My System SpecsSystem Spec
24 Dec 2009   #7

Windows 7/Windows Vista

Thanks to all your help I'm now typing this from Windows 7, crisis over. The startup repair worked perfectly and I didn't need the install disc. Thanks again for your quick and effective solutions.
My System SpecsSystem Spec
24 Dec 2009   #8

Windows 7 Ulti. x64

So you downloaded the recovery disc that SWI2 pointed you to? And you did not need to find your missing disc. Cool thanks for posting your resolution. Happy Holidays to you!
My System SpecsSystem Spec

 Windows 7 won't boot

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