Windows 7: How to get rid of this toolbar ?

Instead of flooding with ambiguous descriptions, here's a picture of what I'd like to get rid of, in a random window, with one file selected. That makes the toolbar refer to it by changing the options available (adding "Open with..." for example).

(Referred toolbar is marked with a red frame.)



I'd like to know how to remove this toolbar from my windows.





Thanks for reading and have a pleasant day :)

Have a look at this tutorial and see if it will help Window Explorer Toolbar - Remove
Jerry