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Windows 7: Win7 pro startup error "Boot MGR missing"/"Operating System Not Found

07 Sep 2011   #1

Windows 7 Professional x64
 
 
Win7 pro startup error "Boot MGR missing"/"Operating System Not Found

I just upgraded from Vista Home Premium to Windows 7 professional x64 hoping to fix the above mentioned problem. After a complete re-install Im getting the same errors.

Im not sure of the proper terminology here, but during startup the computer does a scan of all hardware and "Volume 0" has a "failed" message.

The odd thing is that sometimes after a few restarts and pointless boot menu visits the computer starts up fine.

I tried windows repair feature by booting from the disk, but when I get to the window where i select the operating system to repair, its empty. Drive C, where the operating system is, is not showing.

I have a feeling that the hard drive itself has gone bad and is very unstable. Please let me know if I'm missing something or we just need to get a new HD.

Thank you

My System SpecsSystem Spec
08 Sep 2011   #2

Windows 7 Ultimate x64
 
 

What type of hdd do you have. For example if you have a Seagate drive, there is software you can run to do a diagonostic on the hdd before the operating system boots.
This would be a good idea, especially if you were having same issues when Vista Home Premium was installed first.

Do you have more than one hdd installed. If yes, make sure in BIOS settings, the proper drive is selected for First Boot. And better yet make sure its the only drive attached when booting.
My System SpecsSystem Spec
08 Sep 2011   #3

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

Sounds to me, you are upgrading a OEM manufacturer's PC, with a clean install without delting the Recovery Partition.

For better help with problems, Can you post your specs.
Filling out System Specs
System Info - See Your System Specs

Dont Know What Hardware You Have..??
VistaForums SysInfo Tool - Vista Forums
My System SpecsSystem Spec
.


08 Sep 2011   #4

Windows 7x32 Home Premium & XP SP3 x86
 
 

Quote   Quote: Originally Posted by theog View Post
Sounds to me, you are upgrading a OEM manufacturer's PC, with a clean install without delting the Recovery Partition.

For better help with problems, Can you post your specs.
Filling out System Specs
System Info - See Your System Specs

Dont Know What Hardware You Have..??
VistaForums SysInfo Tool - Vista Forums
Can you please explain: How does an OEM Manufacturer's PC differ from any other pc in regards to the Recovery Partition? Should not all PCs have a Recovery Partition?

If a HD reformat has been performed, does that lead to the conclusion that if a recovery partition did exist it is now gone.
My System SpecsSystem Spec
08 Sep 2011   #5

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

Quote:
Can you please explain: How does an OEM Manufacturer's PC differ from any other pc in regards to the Recovery Partition? Should not all PCs have a Recovery Partition?
OEM manufacturer's PC is Dell, HP/Compaq, Toshiba, Acer. Who need to support a way of reinstalling a OS without reinstall DVD's.
When you buy a PC like this, you need to make Recovery disks or use the Recovery Partition.

How to use Toshiba Recovery.
How to use the Toshiba HDD Recovery Utility
My System SpecsSystem Spec
08 Sep 2011   #6

Windows 7 Professional x64
 
 

thanks for the replies.

I have 5 HDs in the computer and they are all WD FALS series.

Also its a custom built computer with:

Intel Xeon E5410 2.33ghz
32gb RAM
NVIDIA 9800gt GeForce
Supermicro MB (dont remember the exact model.)

any suggestions?

Thanks
My System SpecsSystem Spec
08 Sep 2011   #7

Windows 7 Ultimate x64 SP1
 
 

Did you remove all drives but the system drive when you upgraded/reinstalled?
My System SpecsSystem Spec
09 Sep 2011   #8

Windows 7 Professional x64
 
 

Quote   Quote: Originally Posted by kegobeer View Post
Did you remove all drives but the system drive when you upgraded/reinstalled?
I did not. How does that make a difference?
My System SpecsSystem Spec
10 Sep 2011   #9

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

Quote   Quote: Originally Posted by mikhail7 View Post
Quote   Quote: Originally Posted by kegobeer View Post
Did you remove all drives but the system drive when you upgraded/reinstalled?
I did not. How does that make a difference?

The Windows 7 boot files may not be on same HD Drive as the OS.
My System SpecsSystem Spec
10 Sep 2011   #10

Windows 7 Ultimate 64Bit
 
 

Quote   Quote: Originally Posted by dustywoodworker View Post
Quote   Quote: Originally Posted by theog View Post
Sounds to me, you are upgrading a OEM manufacturer's PC, with a clean install without delting the Recovery Partition.

For better help with problems, Can you post your specs.
Filling out System Specs
System Info - See Your System Specs

Dont Know What Hardware You Have..??
VistaForums SysInfo Tool - Vista Forums
Can you please explain: How does an OEM Manufacturer's PC differ from any other pc in regards to the Recovery Partition? Should not all PCs have a Recovery Partition?

If a HD reformat has been performed, does that lead to the conclusion that if a recovery partition did exist it is now gone.
No, all pcs do not have a recovery partition. It may, it may not. If bought from a store like Bestbuy it most likely will. If bought from say Tigerdirect it might not. If you install windows yourself most people wouldn`t even think of making a recovery partition.
My System SpecsSystem Spec
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 Win7 pro startup error "Boot MGR missing"/"Operating System Not Found





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