Thursday, August 25, 2016

Troubleshooter of Error: bootmgr missing error

bootmgr missing error

Hello, I'm using Windows Vista Home Premium on Acer.
When I try to start my computer I get the "BOOTMGR is missing" error.
I don't have a recovery/installation disk so I downloaded and burned one with ImgBurn but it doesn't work, I can't get to System
Repair, I just see the black screen with bootmgr missing error.
Any help would be really appreciated.
I'm getting desperate.

Solutions to the Problem bootmgr missing error

Download SmartPCFixer for Free Now


John provided the methods to access the CD/DVD drive and here are some other troubleshooting steps
that might help.

Check with Acer Support and their on-line documentation.

Acer - USA - Service and Support - Drivers

Acer - Worldwide


This is serious error and "may" not be repairable without professional tech support from
a real computer shop (not leeks and peeks at a BestBuy or other BigBox Stores) or your

System maker's Support.

Here are the troubleshooting methods to try to fix the issue :

Try Startup Repair - (If at ANY point you gain some but not full access to Windows come

back and try Startup Repair again.)
This tells you how to access the System Recovery Options and/or use a Vista Disk
Try StartUp Repair from Recovery Options or Vista disk.
How to do a Startup Repair

Recovering the Vista or Windows 7 Bootloader from the DVD

Recovering the Vista Bootloader with EasyBCD

Repairing the Windows Vista Bootloader

Unable to boot in windows vista- windows boot configuration data file is missing required

information - Repair Corrupt Boot Manager
How to use the Bootrec.exe tool in the Windows Recovery Environment to troubleshoot and

repair startup issues in Windows Vista
How to fix "BOOTMGR is missing" in Windows Vista
Error message when you start Windows Vista: "The Windows Boot Configuration Data file is

missing required information"
Vista Tip: Repair "BOOTMGR is missing" error - a quick how to
See this section here - To repair/rebuild the Boot Config Data Use the Bootrec.exe Tool


If you do not have a Vista disk you can borrow a friends as they are not copy protected.

System maker will also sell the physical DVD cheap since you already own Windows.
Also you

can make a repair disk on another computer.

If you need to make repair disks - these help repair Windows not re-install.

How to Make a Bootable Disk in Vista

Download: Windows Vista x86 32 bit Recovery Disc

Download: Windows Vista x64 64 bit Recovery Disc

How to Make a Windows Vista Repair Disk If You Don’t Have One

Hope this helps.

Rob Brown -
Microsoft MVP <- profile - Windows Expert - Consumer : Bicycle - Mark Twain said it right.

Manually editing the Windows registry

Caution: Unless you an advanced PC user, please do not edit the Windows registry manually.

Because of this risk, we highly recommend using a trusted registry cleaner such as SmartPCFixer Using a registry cleaner automates the process of finding invalid registry entries, missing file references (like the one causing your MACHINE_CHECK_EXCEPTION error), and broken links within the registry. A backup is automatically created before each scan, with the ability to undo any changes in a single click, protecting you against the possibility of PC damage. The best part is that repairing registry errors can also dramatically improve system speed and performance.

  • Click the Start button.
  • Type "command" in the search box... DO NOT hit ENTER yet!
  • While holding CTRL-Shift on your keyboard, hit ENTER.
  • You will be prompted with a permission dialog box.
  • Click Yes.
  • A black box will open with a blinking cursor.
  • Type "regedit" and hit ENTER.
  • In the Registry Editor, select the Error 0x9C-related key (eg. Windows Operating System) you want to back up.
  • From the File menu, choose Export.
  • In the Save In list, select the folder where you want to save the Windows Operating System backup key.
  • In the File Name box, type a name for your backup file, such as "Windows Operating System Backup".
  • In the Export Range box, be sure that "Selected branch" is selected.
  • Click Save.
  • The file is then saved with a .reg file extension.
  • You now have a backup of your MACHINE_CHECK_EXCEPTION-related registry entry.

The next steps in manually editing your registry will not be discussed in this article due to the high risk of damaging your system. If you would like to learn more about manual registry editing, please see the links below.

Recommended Method to Fix the Problem: bootmgr missing error:

How to Fix bootmgr missing error with SmartPCFixer?

1. Download Error Fixer. Install it on your system.

2. After the scan is finished, you can see the errors and problems need to be fixed. Click Fix All.

3. The Fixing part is done, the speed of your computer will be much higher than before and the errors have been fixed.

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