Windows 8.1 includes online search results from Bing whenever you search for something on your system. Since many people aren't going to want this, here is how to get rid of this behavior.

Note: obviously it could be a useful feature if you really want it -- but then again, if you are searching for something very personal on your own computer, you don't really want that search being sent over to Bing. I mean, we should make the NSA work for it a little bit, right?

How to Disable Bing From the Internal Search Engine on Windows 8.1

Press the Win + C keyboard combination to bring up the Charms Bar and then click on the settings charm.

Near the bottom right hand corner of your screen you will have an option to “Change PC settings”, and you should click on it.

Now head into the Search & Apps section of the PC settings panel.

Here, on the right hand side you will see an option to disable search results from Bing, which you'll want to flip to Off.

That’s all there is to it.