How to Fix BootMGR is missing Xp/Windows 7/Vista

One of my friend asked me for help, he said in SMS:
I have a gateway NV79. I had a Hard Drive Failure, so I bought a new SATA hard drive. I ordered the recovery discs from gateway. Everything was going good, until my laptop lost charge. Now when it says Bootmgr missing, Press Alt-Ctrl-Delete to restart.

There are few ways that the "BOOTMGR is missing" error may show up on your computer, with the first error I have listed being the most common:
    * "BOOTMGR is missing  Press Ctrl Alt Del to restart"
    * "BOOTMGR is missing Press any key to restart"
    * "Couldn't find BOOTMGR"

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

Reasons of BOOTMGR Is missing Errors
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 hard drive interface cables.
Another reason you might see BOOTMGR errors is if your PC is trying to boot from a hard drive or flash drive that is not properly configured to be booted from. In other words, it's trying to boot from a non-bootable source. This also would apply to media on an optical drive or floppy drive that you're trying to boot from.

Fix BootMGR is missing Xp/Windows 7/Vista Errors

Attempt 1. Restart the PC. The BOOTMGR error could be a fluke.

Attempt 2. Check your optical drives, USB ports, and floppy drives for media. Often times, the "BOOTMGR is Missing" error will appear if your PC is trying to boot to a non-bootable disc, external drive, or floppy disk.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.

Attempt 3. Reseat all internal data and power cables. BOOTMGR error messages could be caused by unplugged, loose, or malfunctioning power or controller cables.Try replacing the PATA or SATA cable if you suspect it might be faulty.

Attempt 4. Perform a Startup Repair of Windows. This type of installation should replace any missing or corrupt files, including BOOTMGR.
Even though a Startup Repair is a common solution for BOOTMGR problems, don't worry if it doesn't fix your problem. Just continue troubleshooting - something will work.

Attempt 5.
Write a new partition boot sector to the Windows system partition to correct any possible corruption, configuration problem, or other damage.The partition boot sector is an important piece in the boot process so if there's any issue with it, you'll see problems like "BOOTMGR is Missing" errors.

If the above five kinds of methods can help you, or when you try the third method you have got crazy, so, re-install system is the fastest way to solve all the problem caused by software. However, someone said I will lose the important data if re-install system. Never mind, someone had  excogitated how to backup data when windows won't boot !

If you Windows won't start, you can try Windows Data Reocvery Win PE. It is a complete data recovery software tool that can recover lost, deleted or formatted files from hard drive and other removable media, such as external hard drive, USB drive, flash drive, floppy drive, memory card, CF card, etc. It not only supports data recovery for Windows file system (FAT12/16/32, NTFS), but also for Mac (HFS+, HFS)and Linux file system (EXT2, EXT3).You can downlad this software from
http://www.any-data-recovery.com/product/datarecoveryprofessional.htm  and  only few easy steps to recover data from bootmgr missing problem.

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