How to Fix Bootmgr Missing in Windows 7/ Windows Vista

When you install in your system a new Windows OS then the first 512kb of the hard disk goes to the Bootmgr partition in 32x based systems. This partition has special administrator’s rights and any sort of editing in here is not possible. This is to ensure that the user doesn’t lose the all important access to the system. And need to reinstall the system all over again. But sometimes this convenience also gets overridden by the user knowingly or unknowingly. Some of the anti-virus software coding has been provided with the in-built feature to deduce the codes in this partition to be able to help the user be able to boot using their software.


{Compatible with Windows 8, 7, XP, ME, Vista, 98, 2000 (32/64)
File Size: 4.9MB Download Time: <(dsl, 2sec, dialup 2min)>}

This sometimes leads to the corruption of the Bootmgr partition because the most attacked software by the viruses, in the system is the protector itself, the anti-virus. Here a few easy stepwise methods have been listed.

If you are not such a fan of manual procedures then you could look to use Advanced System Repair Tool for this.

Solutions –

Method 1: Run Startup Repair from Windows Recovery Environment

  • Insert the Windows Installation Disc into the disc drive, and then Start the system.
  • Press any key when the message Press any key to boot from CD or DVD appears.
  • If your system does not detect the media automatically:
  • During the Restart Process, look for any instruction that explains how to interrupt normal startup and enter the basic input/output system (BIOS) setup utility or refer the documentation/manual of your system. Most systems use the F2, F10, ESC, or DEL key to begin the BIOS Setup.
  • Look for a tab in the BIOS Setup Utility that is labeled Boot Order, Boot Options, or Boot. Following the directions on the screen, use the arrow keys to go to the Boot Order, and then press Enter.
  • Locate the CD, DVD, or USB flash drive (this might be called Removable Device) in the Boot list.
  • Following the directions on the screen, use the arrow keys to move the drive up so that it appears first in the Boot list. Press Enter. The boot order sequence is now changed to boot from the CD, DVD, or USB flash drive.
  • Press F10 to save your changes and to exit the BIOS Setup Utility. Select Yes in the confirmation window. The PC will restart.
  • Select a language, a time and a currency, a keyboard or input method, and then click Next.
  • Click Repair your computer.
  • In the System Recovery Options dialog box, select the drive of your Windows installation, and then click Next.
  • At the System Recovery Options dialog box, click Repair your computer.
  • Click the operating system that you want to repair, and then click Next.
  • In the System Recovery Options dialog box, click Startup Repair.

Method 2: Rebuild the boot configuration data (BCD) from Windows Recovery Environment (WinRE)

  • Put the Windows installation disc in the disc drive, and then start the computer.
  • Press a key when the message Press any key to boot from CD or DVD appears.
  • If your PC does not detect the media automatically
  • During the restart process, read the screen for any instructions that explain how to interrupt normal startup and enter the basic input/output system (BIOS) setup utility. Most PCs use the F2, F10, ESC, or DEL key to begin the BIOS Setup.
  • Look for a tab in the BIOS Setup Utility that is labeled Boot Order, Boot Options, or Boot. Following the directions on the screen, use the arrow keys to go to the Boot Order, then press Enter.
  • Locate the CD, DVD, or USB flash drive (this might be called Removable Device) in the Boot list.
  • Following the directions on the screen, use the arrow keys to move the drive up so that it appears first in the Boot list. Press Enter. The boot order sequence is now changed to boot from the CD, DVD, or USB flash drive.
  • Press F10 to save your changes and to exit the BIOS Setup Utility. Select Yes in the confirmation window. The PC will restart. Allow the PC to restart normally. The scan will take a few minutes and remove any malware that may be infecting your computer.
  • Select a language, a time, a currency, a keyboard or another input method, and then click Next.
  • Click Repair your computer.
  • Click the operating system that you want to repair, and then click Next.
  • In the System Recovery Options dialog box, click Command Prompt.
  • Type Bootrec /RebuildBcd, and then press ENTER.

Hopefully the above methods did help you to resolve the issue; Bootmgr Missing in Windows 7/ Windows Vista, Couldn’t Find Bootmgr, Bootmgr Partition Corrupted.


{Compatible with Windows 8, 7, XP, ME, Vista, 98, 2000 (32/64)
File Size: 4.9MB Download Time: <(dsl, 2sec, dialup 2min)>}

If it didn’t then you could look to use Advanced System Repair Tool. This tool will not interfere with your Bootmgr partition and help you to resolve the issue automatically. This tool has been specially designed to help users to recover from BSoD errors and .dll files corruptions. It also scans the system and cleans it of viruses and repair corruption damages automatically.


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