This is what all my desktops and laptops look like on an initial boot. This first screen (excuse the bad picture my cell phone is old), if I let it time out or press enter, the computer will load Windows. These shots are of my main desktop. Sorry the whitbar makes it difficlut to see that "Windows 7" is highlighted.
This second shot is Grub2. I get this screen by hitting the down arrow on the first screen and then "Enter."
From here I can load Mint or if I made a mistake, you know typical cockpit error, I can select "Windows Boot Loader" at the bottom, and it will take me back to the first screen where I could select Windows.
It's pretty simple, and a Windows update won't destroy or overwrite my Grub 2, and likewise, a Linux update to Grub won't mess with my Windows boot loader.