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Windows 7: Missing Boot Manager can't be repaired How to, please.

28 Oct 2010   #11
Neophile

Windows 7 Ultimate 64-bit SP1
 
 

Sorry gregrocke, I have already tried sfc /scannow with the results I posted on my message #6, 4th paragraph. That's why I asked if that scan could be forced, and also as a perhaps possible alternative to make a boot scan. Please, refer to my post #9 about this. I may prove useless, but for the moment I believe that if the scanboot or scanonce work it might solve the problem, could happen.

I understand what you mean about the partition to be Active, but it is marked. Actually it is the only one marked as Active on the attached snapshop of my Disk Management. The drives are very easy to identify because I give real meaning names to my HDDs. The drive letters are not the same as I see them from Win7, of course, because the screenshot was taken from XP. Only the disk with XP has two partitions. The Windows 7 partition was already Active, but I entered the command and it accepted, as you can see. It has always been Active, believe me, because I have checked and rechecked often times.

I can't remember exactly how many times I run Startup Repair, but at least six.

Thanks a lot for continuing helping.




Attached Thumbnails
-hdds.jpg   -partitiondisk0.jpg  
My System SpecsSystem Spec
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28 Oct 2010   #12
gregrocker

 

The problem is that DISK2 C holds the System MBR and won't release it to DISK0 Win7 on F.

Try unplugging C DISK2, making sure Win7 HD is set as first HD to boot (after DVD drive) in BIOS setup, then boot the Win7 DVD to run Startup Repair up to 3 separate times with reboots until Win7 starts. Report back if it doesn't find an installation to Repair.

After WIn7 starts you can plug back in DISK2 to boot it via one-time BIOS Boot Menu key given on the first boot screen, or in your Manual on mobo maker's Support Downloads webpage.
My System SpecsSystem Spec
28 Oct 2010   #13
Neophile

Windows 7 Ultimate 64-bit SP1
 
 

Sorry, I can't try anything now because it is too late here, but this is the order of the disks as copied from Diskpart:

Disk ### . Status . .Size . . . . . . [Names I added]
----------- . -------- . ---------- . . .-------------------
Disk 0 . . . Online . . 112 GB . . . . Windows 7
Disk 1 . . . Online . . . 72 GB . . . . Backup
Disk 2 . . . Online . . 963 GB . . . . Windows XP & Base


This will give you the idea of their order. Tomorrow I will come to read your probable answer and follow your instructions. Thanks again and good night.
My System SpecsSystem Spec
.

29 Oct 2010   #14
Neophile

Windows 7 Ultimate 64-bit SP1
 
 

Hi,

Here are the snapshots of the files on each partition root. Disk 1 doesn't have root files. They should have been attached to my last post but I couldn't. Their names were changed while uploading. I put them close to their pictures:

I don't know why both partitions of Disc 2 have system files when there is only one OS on the Disk. This is not so important, but I had the same configuration on the previous installation, less than six months ago, and only the partition with Win XP on its disk had system files. So I have three roots with OS files, but only two OSs!

Regarding your last post, it took me a very long time, mostly between 30min and 50min for every reboot cycle. Well, this is to say where I spent all my time. So I am really interested to finish with this time consuming thing and put the drive back on the road.

Quote:
The problem is that DISK2 C holds the System MBR and won't release it to DISK0 Win7 on F.
This configuration exists for about six months without problem. Can the MBR be relocated?

I rebuilt BCD using the Win7 DVD, and at the end there was the same as always:
Successfully scanned Windows installations.
Total identified Windows installations: 0
The operation completed successfully.

It doesn't boot completely, but it boots.


- Startup Repair results (beginning)

One of the results from Startup Repair is
Problem signature 07: NoBootFailure

I disconnected Disk 2 and did as you said. The log counted five trials for each passage time to repair (they takes a very long time), and one of them says:

Root cause found:
Unexpected changes to system configuration might have caused the problem.


There are now two differences when booting. The missing comctl32.dll is gone. After the shrinking/growing logo it reboots right away or a boot menu appears with only one choice and reboots quickly, but there is no menu at the initial booting .

-Startup Repair results (end)


I did other things. I tried with the SFC command line with the DVD. Scannow doen't work for the same reason as befor (only after booting). I learned that options (switches) like Scanonce and Scanboot are not valid for Windows 7, so I don't know how to force a boot scan, and I didn't understand how to use other switches. However, I tried one that I found: sfc /scannow /offbootdir=c:\ /offlinedir=c:\windows

The answer was that there were problems, but could not make repairs and there was a log at Windows\Logs\CBS.log. I searched the whole computer, but the only log with that name was a 2.390KB one from day 14 to 25, the day the problem happened. I attach I attach only the end of the log, the part of the last day.

From this point, I believe that all I have to do to make the partition boot is to find a way for two things:
  1. Repair the files that SFC could not do, if any;
  2. Repair the OS root files or/and relocate the MBR.
I don't know how, but it does not seem to be very difficult.

Many thanks and sorry if this is long. Have a nice weekend.



. 457 x 214 . . . . . . Disk2 Windows XP
. 421 x 247 . . . . . . Disk2 Basic
. 421 x 283 . . . . . . Disk0 Windows 7


Attached Images
-disk2_win_xp.jpg -disk2_basic.jpg -disk0_win_7.jpg 
My System SpecsSystem Spec
29 Oct 2010   #15
gregrocker

 

Did you unplug DISK2, set Win7 HD as first to boot in BIOS setup, then run Startup Repair x3?

Does an installation show up to repair when you boot into Repair console?

If not, open a Command Line, type bootrec.exe /fixmbr and bootrec.exe /fixboot to jumpstart repair.

Your System MBR is located on the C partition, not the D XP partition. The MBR is stationary but updates to the first Active partition if not blocked from doing so by misconfiguration.

If you've done a lot of file transfers and other fixin on it outside of the Mark Active + automated Startup Repair protocol then it likely is bricked and won't fix now. Consider clean reinstall with other HD's unplugged, wiping HD first: SSD / HDD : Optimize for Windows Reinstallation
My System SpecsSystem Spec
30 Oct 2010   #16
Neophile

Windows 7 Ultimate 64-bit SP1
 
 

Thank you for replying.


Quote   Quote: Originally Posted by gregrocker View Post
Does an installation show up to repair when you boot into Repair console?
If not, open a Command Line, type bootrec.exe /fixmbr and bootrec.exe /fixboot to jumpstart repair.
It does, but I did bootrec as recommended, anyway, just before performing the following.


Quote   Quote: Originally Posted by gregrocker View Post
Did you unplug DISK2, set Windows 7 HD as first to boot in BIOS setup, then run Startup Repair x3?
I did answer this; please refer to the section of my post that I marked with the starting in bold. (I noticed that when the drive with XP is disconnected, the BIOS automatically put it up to the top of the list.) I tried this again for another four times with slightly different results; all they run now in less than a minute. Now, at the last two trials, this result disappeared:
Root cause found:
Unexpected changes to system configuration might have caused the problem.


Also, the first Startup Repair before the log (on a white background) did not show up on the last two trials. So that, the issue it mentioned before does not appear any more:
Problem signature 07: NoBootFailure

On the log (where we are asked to send a report to Microsoft) this entry also disappeared from the tow last Startup Repair trials:
Root cause found:
Unexpected changes to system configuration might have caused the problem.


On this same log, a new entry appears now:
Root cause found:
Boot status indicates that the OS booted successfully.


The problem is that it keeps doing the same when trying to boot in a normal way. After the shrinking/growing logo it reboots by itself, and that cycle can go on forever. It is not possible to use sfc /scannow, which might repair the files if needed because the answer is always the same:
There is a system repair pending which requires reboot to complete, Restart windows and run sfc again.

For the third time I ask you, please: Can't this be forced to run? Is it not worth trying?


Quote   Quote: Originally Posted by gregrocker View Post
If you've done a lot of file transfers and other fixin on it outside of the Mark Active + automated Startup Repair protocol then it likely is bricked and won't fix now.
I didn't transfer files expect for the comctl32.dll file, as mentioned. However, after that I replaced that file with the one I extracted from the Win7 DVD according to tutorial Extract Files from Windows 7 Installation DVD


Quote   Quote: Originally Posted by gregrocker View Post
Consider clean reinstall with other HD's unplugged, wiping HD first: SSD / HDD : Optimize for Windows Reinstallation
The only reason I came here asking for help was exactly to avoid having to do that.


Everything seems to be OK, but it is not, or else the partition should boot. What can be holding it from booting, please? This seems almost finished, just holding by a hair. I am nearly sure you can give it the last push. Thanks for the continued help.
My System SpecsSystem Spec
30 Oct 2010   #17
SIW2

Microsoft Community Contributor Award Recipient

Vista x64 / 7 X64
 
 

Try replacing the registry hives.

Use whatever boot disc is easiest , have a look in windows \system32\config.

You will see the hives there .

There are backup copies in Windows\system32\config\regback.

Rename the original ones in windows\system32\config to e.g. DEFAULTOLD, COMPONENETSOLD, SYTEMOLD, etc.

Then copy the backups from Windows\system32\config\regback into windows\system32\config.


See if that helps.
My System SpecsSystem Spec
30 Oct 2010   #18
Neophile

Windows 7 Ultimate 64-bit SP1
 
 

Hi SIW2,

I did think of that, but registry backup used to be very easy, but I find it complicated since XP.

At windows\system32\config\RegBack I don't have all of the files that are on windows\system32\config.

Here are the files I have on RegBack: DEFAULT, SAM, SECURITY, SOFTWARE and SYSTEM. Then I have two log files each one of them, LOG1 and LOG2.

The missing files are: BCD-Template, COMPONENETS (plus 12 with long names starting with the same name), userdiff, and their logs,

Am I missing something?

Please advise.
My System SpecsSystem Spec
30 Oct 2010   #19
Bare Foot Kid
Microsoft MVP

W 7 64-bit Ultimate
 
 

Here is an excellent tutorial that out-lines how to back-up the registry.

Registry - Backup and Restore
My System SpecsSystem Spec
31 Oct 2010   #20
SIW2

Microsoft Community Contributor Award Recipient

Vista x64 / 7 X64
 
 

Hi Neophile,

You will only have DEFAULT, SAM, SECURITY, SOFTWARE and SYSTEM Hives in regbak.

Copy those into system32\config.

Just copy the above , not the LOG files.
My System SpecsSystem Spec
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 Missing Boot Manager can't be repaired How to, please.




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