Removing GRUB from windows system after uninstalling Ubuntu from Windows 7 [duplicate]

You need Windows 7 installation disk, boot it, choose repair option when you are asked to menu.

It will check automatically for start up problems. Let it check it.

• It will not find any problem with start up.
• It will allow to choose options. Choose command prompt.

• In cmd you have to type just two following commands and grub will be removed.

  bootrec /fixmbr  
  bootrec /fixboot
  

Close cmd and restart your machine.

Here's how.

• Download and burn the Super Grub Disk ISO to a CD.
• Boot from it.
• Select the Choose Language & HELP :-)) entry.
• Select the English entry.
• Select the Windows entry.
• Select the Fix Boot of Windows entry.
• Reboot once the process is complete.

No more Grub! :)

• Put windows 7 disk and boot from it.

• Choose to repair windows now.

• It will ask to repair, select yes. After restart if grub is still there, follow above step.

• Select windows partition found by the recovery manager and click Next

• Now choose startup repair.

This internally uses command fixboot and fixmbr. You can google for more details.