How to fix "BOOTMGR is missing" problem in Windows 7 and vista.

A short video for your problem solution.

The "BOOTMGR is missing" error displays shortly after the computer is turned on, immediately after the Power On Self Test (POST) is complete. Windows 7 or Windows Vista has only initially started to load when the BOOTMGR error message appears.

Causes of BOOTMGR Errors :-

This problem may occurs when you install windows XP on a VISTA or 7 loaded pc for dual boot. But what you see is that only xp is booting and when you try to  boot 7 then this error may come. 

There are a number of possible causes for BOOTMGR errors, including the most common "BOOTMGR is missing" error message.

The most common reasons for BOOTMGR errors include corrupt and misconfigured files, hard drive and operating system upgrade issues, corrupt hard drive sectors, an outdated BIOS, and damaged or loose IDE cables.

When you find yourself receiving "BOOTMGR is missing, Press Ctrl+Alt+Del to restart"  error message? Don't stress! Its easier to fix than you think. Here's how:

SOLUTION 1
- Get your Vista or 7 installation DVD and pop it into your drive.
- Then restart your computer.
- Set your computer to boot from DVD or CD in your BIOS.

Vista will ask you for language and keyboard layout information, after which you will be asked if you want to re-install Vista or repair your existing installation.
Select Repair. After which Vista's System Recovery Tool will start.

Select Startup Repair and let Vista or 7 do its thing! That really is all there is to it!
If that doesn't work try this:

SOLUTION 2
If the previous method does not resolve the problem, you can rebuild the BCD store by using the Bootrec.exe tool in the Windows Recovery Environment. To do this, follow these steps:

- Get your Vista or 7 installation DVD and pop it into your drive.
- Then restart your computer.
- Press a key when you are prompted.
- Select a language, a time, a currency, and 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

• If Bootrec runs successfully, it will present you with the installation path of a Windows directory. To add the entry to the BCD store, type Yes . A confirmation message appears that indicates the entry was added successfully.

• If Bootrec cannot locate any missing Windows installations, you must remove the BCD store, and then you must re-create it. To do this, type the following commands in the order shown below: (Remember to press ENTER after each command)

bcdedit /export C:\BCD_Backup

ren c:\boot\bcd bcd.old

bootrec /rebuildbcd

- Restart the computer.

solution 3:-

Check your floppy and optical drives for media. Often times, the "BOOTMGR is Missing" error will appear if your PC is trying to boot to a non-bootable floppy disk or CD/DVD.

Note: If you find that this is the cause of your issue and it's happening regularly, you might want to consider changing the boot order in BIOS so the hard drive is listed as the first boot device.

solution 4 :-

Reseat all internal data and power cables. BOOTMGR error messages could be caused by loose or malfunctioning power or controller cables.Try replacing the PATA or SATA cable if you suspect it might be faulty.

If all these solution fails then you will face hard drive or hardware failure.

  After restart you will see two operating system selection menu or in other words yor problem will be resolved.