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Windows 7: Win Boot Mgr-windows failed to start!

06 Nov 2010   #1

Vista 32bit/ Win7 64bit
Win Boot Mgr-windows failed to start!


I'm having serious problem with booting my OS.
in Windows boot manager Windows 7 fails to start.
repair the startup doens't help.

I have Vista 32bit installed on one drive/partition which works fine and Windows 7 64bit on 2nd disk.Due to clean up and re-partition of the disk reasons I decided to do clean install of Windows 7 64bit on a 3rd separate drive/partition.
Everything went smoothly and all 3 systems were visible on the boot screen and they worked fine.
The following step was to remove the Windows 7 from the 2nd drive.
I couldn't format it in anyway (neither Windows 7 install DVD disk nor disk menager).I managed to do it by external software for partitioning under Vista.(I'm writing it as this inability to format has something to do with booting problems now,I guess-removing MBR?)
After formating of 2nd disk I could not load Windows 7 from 3rd drive (Vista works fine)!!
I installed again Windows 7 on 2nd drive, but none of Windows 7 systems are still accessible without startup repair (I did it 3 times)
both Windows 7 and vista systems are visible in boot screen only when Windows 7 installation disk is in DVD and booting order in BIOS is set to start from DVD first.(Windows 7 and vista appears as recovered)
If I remove the DVD disk or change the order to boot from HDD only Vista and one Windows 7 64bit from 2nd disk appear. I can start vista but not Windows 7.

What do I want:keep VIsta and have Windows 7 64bit on 3rd drive(all programes installed--I want to keep this system for Windows 7)
What I did:
- chkdsk f/r on ---2nd and 3rd disk no errors
- startup repair doesn't help unless installation disk is in the drive (I did it 3x)(all 3 systems appear and I can lead them w/o problem)

Done in sequence on 3rd disk
total identified windows systems 0
operation completed succesfully
operation completed succesfully
operation completed succesfully
total identified windows systems 0
operation completed succesfully

I hope my explanation is rather clean.
Please help!!.I though I can fix it on my own,but unfortunately not.

My System SpecsSystem Spec

06 Nov 2010   #2
Microsoft MVP

W 7 64-bit Ultimate

Hello PArtu, welcome to Seven Forums!

Before we make any specific recommendations will you please post a snip/screen-shot of the entire disk management drive map with a full description as to which drive/partition is which, so we can see what you have going on as there may be a fairly simple way to resolve the situation.

In the Windows start menu right click computer and click manage, in the left pane of the "Computer Management" window that opens click disk management and post a snip of that; taken from Vista will be fine.

How to Upload and Post a Screenshot and File in Seven Forums

Be sure to post back with any further questions you may have and to keep us informed.
My System SpecsSystem Spec
06 Nov 2010   #3

Vista 32bit/ Win7 64bit

Here it comes:
Samsung (c: )= Vista 32bit - 1st disk in my description
windows 7 system (d: )= Windows 7 64bit - system partition - 2nd disk in my description
trzeci dysk (f: )= Windows 7 64bit - 3rd disk in my description

System is polish so I'll give the description just in case:
zdrowy = healthy
aktywna = active
partycja podstawowa = basic partition

Attached Images
My System SpecsSystem Spec

06 Nov 2010   #4
Microsoft MVP

W 7 64-bit Ultimate

Which Windows 7 do you need/want to keep, D: or F:?
My System SpecsSystem Spec
06 Nov 2010   #5

Vista 32bit/ Win7 64bit

definitely F:
My System SpecsSystem Spec
06 Nov 2010   #6
Microsoft MVP

W 7 64-bit Ultimate

OK in the BIOS set disk 1 F: as the first boot device, disconnect the other 2 (disk 0 and disk 2) Hard Disk Drives from the motherboard and then boot the Windows 7 install disk and do at least 3 separate startup repairs with a system restart between each repair to create a set of boot files to that Windows 7, after it is booting good on its own, power down and reconnect the other HDDs and use the BIOS one time boot menu to select which OS/HDD to boot.
My System SpecsSystem Spec
16 Nov 2010   #7

Vista 32bit/ Win7 64bit

Hi, Will I have the screen "choose which OS to boot" at start-up after the procedure you've posted?. Or will I have to go to BIOS with that. If there won't be a choose screen, that would be very inconvenient. Best,
My System SpecsSystem Spec
16 Nov 2010   #8
Microsoft MVP

W 7 64-bit Ultimate

It's really the only way to fix it but you will get a one-time boot menu similar to the Windows boot manager; after the repairs when you start the PC start tapping the BIOS one-time hot-key to enter the one-time menu specific to your motherboard.

I'm not sure what it may be for DFI maybe someone here will be able to help with that.

For my Asus board it's F8 at start-up to get a boot menu like this.
click to enlarge
Win Boot Mgr-windows failed to start!-bios-one_time-boot-menu.jpg

My System SpecsSystem Spec
18 Nov 2010   #9

Vista 32bit/ Win7 64bit

The whole procedure went pretty smoothly, but Vista is not accessible
The F8 on DFI doesn't show the boot device screen. Only the safe mode, etc.
I've tried F11 nothing (I googled it might be the option), F1 gives me the system choose screen, but only Windows 7 (on F:drive) is present (as expected).
Del is the BIOS access.
I'm worried that DFI might not have this option
that's the only place I found someone having the same problem:
I also wrote to DFI asking about the shortcut.

What would be other way to resurrect Vista?
My System SpecsSystem Spec
18 Nov 2010   #10
Microsoft MVP


I also searched for DFI shortcut key and found none.

In this case you may need to install EasyBCD 2.0 to Windows 7 to Add Vista on the Add OS tab. Let it autocomplete and then Save, restart to Dual Boot menu. Welcome to EasyBCD 2.0! — The NeoSmart Files

This should be all you need, but if there are any other hitches post back a screenshot of your Disk Mgmt drive map with full listings, and the EasyBCD listings page.
My System SpecsSystem Spec

 Win Boot Mgr-windows failed to start!

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