fix dual boot problem through commands

U have two Operating system installed.
problem:
(1) computer automatically starts in XP(lower version or linux) so unable to use VISTA(higher version).
a)insert vista dvd and repair vista using system repair.
under command prompt windows option
bootrec.exe /fixMBR and press enter.
bootrec.exe /fixBoot and press enter.
restart computer. [now computer will start in vista]
b) run command prompt as an addministrator on right click.
enter after each command.
bcdedit -set {ntldr} device partition=C:
bcdedit -set {ntldr} path \ntldr
bcdedit -displayorder {ntldr} -addlast
bcdedit -set {ntldr} description “Microsoft Windows XP”
-------------response after each enter either should command ren successfully or already exists
but if not then retype that command.
c)U r don.Enjoy dual boot.

(2) if computer starts in vista (newer windows) so unable to use XP(older windows)(or linux)
perform step (b) onwards.

##It is already tested.Perform at ur OWN RISK.