Repair Windows® Vista® boot loader

Learn how to repair boot loader issues in a computer with Windows Vista?


The boot loader is a program that loads the operating system into the computer’s memory when the system is booted and also starts the operating system. A boot loader is also called a boot manager. When a computer is powered-up or restarted, the basic input/output system (BIOS) performs some initial tests, and then it transfers control to the master boot record (MBR) where the boot loader resides. Most of the new computers are coming with boot loaders. Windows Vista might no longer start after you install an earlier version of the Windows operating system in a dual-boot configuration. If you install an earlier version of the Windows operating system on a Windows Vista-based computer, the OS might no longer start. Boot loader contains a large number of files that might get altered due to installation of older versions of Windows over Windows Vista. It might also get infected due to virus.


The following are the tips to repair Windows Vista boot loader:




  • By repairing your computer

  • Through command prompt

  • Things to be kept in mind



By repairing your computer



First of all, you need to boot from your Windows Vista CD/DVD. Click the option which says 'Repair your computer.' Then you need to select the operation system and click 'Next.' You will get system recovery options, here click 'Start up repair.' Allow the repair process to be completed. After that you need to restart your computer.



Through command prompt



You need to boot from the Windows Vista installation CD or DVD for performing this. Click the 'Repair your computer' option. After that you need to select the operating system and click 'Next.' In 'System Recovery' options, you need to click 'command prompt.' Then type 'Bootrec /RebuildBcd,' and then press 'Enter.' You need to restart your computer after the process finishes.



Things to be kept in mind


If the 'Bootrec.exe' tool cannot locate any missing Windows installation files, type the commands 'Bcdedit /export C:BCD_Backup,' 'ren c:bootbcd bcd.old' or 'Bootrec /rebuildbcd' and press 'Enter.' Also ensure that your computer is free from virus to prevent system corruption. Also ensure that you are using a good copy of Windows Vista DVD for booting purpose.




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