Is your friend deserving of a practical joke?
This is a simple and effective April Fool's Day Prank.
Step 1: Downloading and Using KeyTweak
Install KeyTweak, following the onscreen instructions.
-Select the key you wish to change, in this case, I chose Spacebar, which I will make into the Enter key.
-Chose the new action for the selected key under the "Choose New Remapping" menu.
-Click "Remap Key"
-Restart computer as is prompted to do so.