Recover windows 7 after removing linux from a Dual boot system

If you install linux on a hard disk partition after windows,it changes MBR(Master boot record), and then if you remove the linux ,it will result in a non bootable windows.
To fix this just follow this steps and enjoy a clean windows booting.
  insert windows installation DVD and boot from it,select repair windows option and   then command prompt.
   now run the following commands
    >diskpart
    >select volume 0
    >list volume
     this will list the drive letter of your windows DVD.(for example G)
    >exit
    >G: (or any other drive letter what you got)
    >cd boot
    >dir
    >bootsect /nt60 SYS /mbr
now exit the command prompt and restart your computer,Enjoy.