You have to do it on a computer. I don't think you can delete it directly from the Nook.
take out the battery or turn it off and reset it
Not every app, but you can still get a lot of apps on the Nook.
you go to the barnes and noble website and sign in to your account (the same one that is registered onto your nook), and then you go to my account, then my NOOK library. that will bring you to a page where you can delete any of the books off of your nook.
You can find free Nook apps on the Barnes & Noble website or in the Nook app store on your Nook device. Simply search for "free apps" in the app store to browse and download a variety of free apps available for your Nook.
you cant it never comes off
Delete history on nook hd
1. Put finger on the app you want to delete 2. Hold finger there until the app starts vibrating 3. Press the "x" that appears on the top left side of the app 
Not at this time.
Yes there is
No.
Yes
no