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Repair the Master Boot Record (MBR)

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If you're having issues booting Windows Vista, fixing the MBR (Master Boot Record) can fix it. The follow guide will show you how.

1.) Insert your Windows Vista installation DVD/CD and boot from it.

2.) Choose your language and keyboard layout

3.) At the Welcome screen, click on Repair your computer.

4.) In the next screen, choose your Operating System and click Next.

5.) In the System Recovery Options window, click on Command Prompt.

6.) When the Command Prompt appears, type in the following commands, pressing ENTER after each one and allowing it to finish executing:

bootrec /FixMbr
bootrec /FixBoot
bootrec /RebuildBcd
If the bootrec /RebuildBcd doesn't work, try this alternative:

bcdedit /export C:\bcdbackup
cd boot
attrib bcd -s -h -r
ren c:\boot\bcd bcd.backup
bootrec /rebuildbcd
7.) Remove the CD/DVD from the tray, type exit, and reboot your computer.
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