I'm trying to start learning git and use it. I've downloaded a training video about git and am currently watching it.
I've downloaded and installed git on my computer. I use Windows 8 OS (32 bit version). But I don't know why I don't have a Git Init Here option when I right-click:
As you see, the box that comes up when I right-click has 2 options about git:
Git GUI HereGit Bash Here
But the one in the tutorial video has one more option named Git Init Here. Well, why mine doesn't have that option? Did I install the git wrongly?

It should not give issue, please confirm whether git is installed properly or not by echoing the PATH;
If yes then please try once by restarting your system, sometimes it doesn't take effect until we restart our system.
For better understanding of git you may refer here, a very interactive session where you can track your progress.