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Windows 7: BOOTMGR is Missing; Press Ctrl+Alt+del to restart

01 Jun 2013   #1
st1led

MS Windows 7 Ultimate 64-bit SP1
 
 
BOOTMGR is Missing; Press Ctrl+Alt+del to restart

Hi everybody, I think I made some huge mistake by messing around with partitions in my system. Specifically, I'm quite sure I deleted by mistake the 100 MB system reserved partition that contained the boot files and now Windows 7 shows this error at boot time.

It shouldn't be dramatic since I may have to just write new boot files. I googled a bit around, and this is what I did (with no success). Booting from the installation disk, I entered the command prompt via Shift+F10 and:

  1. I set the windows partition (the one where windows is installed, i.e., the one that has the c:\windows folder) as active via diskpart, and then I run the system recovery for 3-4-5 times with no success. Every time the log reports that "The partition table does not have a valid System Partition. Repair action: Partition Table Repair Result: Completed successfully. Error code = 0x0 Time taken = 7322 ms". It may look like the problem is fixed, but in the end the BOOTMGR error continues to appear, so I'm wondering whether this is doing something at all. I've read it may take 3-4 times for it to work, but since it didn't I guess we have to try something else. Mind that however, the system recovery is never able to find the windows 7 installation (the list of installations found is empty).
  2. After setting the windows partition as active, "bootrec /FixMbr" returns "Operation completed successfully"
  3. After setting the windows partition as active, "bootrec /FixBoot" returns "Element not found"
  4. After setting the windows partition as active, "bootrec /RebuildBcd" finds one windows installation in C:\Windows, but when adding it it returns "Element not found"
  5. After setting the windows partition as active, "bcdboot c:\windows /v" returns "BFSVC: Failed to get system partition! Last error = 0x3bc3"
  6. After setting the windows partition as active, "bcdedit" returns "The boot configuration data store could not be opened. The requested system device cannot be found."
I think I'm missing some crucial step, but I explicitly set via diskpart the windows partition to be active. It looks like this setting isn't saved, because everywhere on the internet whoever had a problem similar to mine fixed it by setting the windows partition as active, which I did.


Ideas?


Regards,
Stefano


My System SpecsSystem Spec
.
01 Jun 2013   #2
Gary

Win 10 Pro 64
 
 

If you have a recovery disk or your Win 7 installation disk boot from it and get into the recovery mode and enter:

C:\ bootrec /fixmbr
C:\ bootrec /fixboot

This should fix your boot mgr.

I just noticed that you have done this already.

OK you might want to try this:

EASEUS Partition Master Home Edition 9.2.2

It has an option that will fix your MBR Se the attached.


Attached Thumbnails
BOOTMGR is Missing; Press Ctrl+Alt+del to restart-eas.png  
My System SpecsSystem Spec
01 Jun 2013   #3
st1led

MS Windows 7 Ultimate 64-bit SP1
 
 

Unfortunately I don't have any recovery disk: I'm entering the command prompt from the windows installation disk.

Both the bootrec commands seem to be ineffective, like I said in the first post, even though "bootrec /fixmbr" returns "operation completed successfully".

Regards,
Stefano

Edit: I just noticed you noticed I already did
My System SpecsSystem Spec
.

01 Jun 2013   #4
Gary

Win 10 Pro 64
 
 

look at my edited post
My System SpecsSystem Spec
01 Jun 2013   #5
st1led

MS Windows 7 Ultimate 64-bit SP1
 
 

I see, thank you for the hint. Lucky enough that I already have the program installed. How can I rebuild the MBR from command line? I was able to open epmConsole.exe, but it seems to just list/create/resize/delete partitions. Or at least I couldn't find any appropriate command in the help.

If I open Main.exe (I guess the same GUI executable that you regularly open from the start menu) it says: "Disk device not detected by EaseUS Partition Master, please reinstall the program and make sure you don't forbid its driver installing or related registry writing in the Anti-virus program's pop-up window.". It's a bit cryptic, since the program was working fine in Windows before I made this mess with the boot partition. After this error the program loads, but in the GUI everything (menus, icons...) is grayed out and I can only close it.

Regards,
Stefano
My System SpecsSystem Spec
01 Jun 2013   #6
Gary

Win 10 Pro 64
 
 

Just right click on the C: drive or your boot drive and choose rebuild mbr
My System SpecsSystem Spec
01 Jun 2013   #7
st1led

MS Windows 7 Ultimate 64-bit SP1
 
 

The problem is I can't select anything, because everything in the GUI is grayed out, and however EaseUS doesn't detect any disk (weird, because I can access files via command prompt).

Regards,
Stefano
My System SpecsSystem Spec
01 Jun 2013   #8
st1led

MS Windows 7 Ultimate 64-bit SP1
 
 

In the end, I was able to burn a boot disc of EaseUS (by installing it on another computer). I booted with such disc that performed some operations in a couple of minutes. Nothing printed on the screen, as there was just the cursor blinking. However, it should have repaired the boot sector as now Windows regularly boots. I guess I'll never travel around without that disc

Thank you for your support gary, I'm not sure I would have made it without your suggestion of trying Partition Master.

Regards,
Stefano
My System SpecsSystem Spec
01 Jun 2013   #9
gregrocker

 

The best solution especially when its necessary to rewrite the System Boot Files is to Mark 7 Partition Active then run Startup Repair - Run up to 3 Separate Times from the Win7 DVD System Recovery Options which is the same as the Repair disk.

Other repairs will not be as complete, e.g. replace the F8 Repair My Computer link.
My System SpecsSystem Spec
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