Remove Linux GRUB and keep Windows boot loader

My operating system was Windows 7, and recently, I installed Zorin OS (linux based on Ubuntu). At first, when I turned on my laptop Windows started automatically. I used a program to make the Windows boot loader come on and ask me what to start.

If I chose Linux, then the Linux GRUB comes on and asks me what to do. I want to remove the GRUB. I want to keep my Windows boot loader.

This documentation should give you a step-by-step process for uninstalling GRUB.

If you want to completely remove Grub, you will have to use bootrec.exe /FixMbr from a Windows7 Rescue CD. Here's how to do it.