The recommended order is to install Tortoise Git first.
Actually you don't want to merge another branch, but to cherry pick a commit.
In the log click on the commit you want to pick and select "cherry-pick".
I just didn't want that much space taken up on my right-click menu.
Git and Tortoise Git make it extremely easy to get personal version control up and running on your machine.
However, a great deal of programmers fail to leverage the great benefits of version control for their personal projects.