Fix #3: Re-Setup
A lot of times the caps lock key isn't actually stuck down or stuck up; the indicator light just isn't working. If this is the case, the only real way to sure-fire fix it is to go out and purchase a brand new keyboard; there is one possible free fix though. Try reinstalling and re-setting up the whole thing by unplugging it, uninstalling the drivers or software, and re-doing everything you did when you first got it. This process is not the same for every keyboard out there, but here's a generic guide that should get you through no matter what you're using:
- First, uninstall your keyboard's drivers by opening up the command prompt window which is located in the Start Menu, under Programs>Accessories>Command Prompt. Make sure you're running it as the administrator by right clicking and choosing that option. Within this MS-DOS-like box, type the following command prompt OR copy/paste it into the dialogue box: SET DEVMGR_SHOW_NONPRESENT_DEVICES=1
This forces any hidden or unused drivers to show themselves in the control panel.
- After typing this in you can close all of this nonsense and go into the Control Panel, then into Device Manager and check under the "Keyboards" section. Expand the box and look for any drivers that are associated with your HP wireless keyboard. Right click on them and select "Uninstall" or "Remove".
- Now, restart your computer and insert the driver disc that came with your keyboard when you bought it. If it didn't come with a driver disc, go online and find the proper drivers from the same location you got them when you first installed them.
- Reinstall the drivers by double clicking on the driver files and following the on-screen instructions.
- Once completed, shut down your computer, plug-in your keyboard, and start it back up. See if it works now!
This fix isn't just reserved for when only the light on your keyboard is broken, and it's a pretty sure-fire way to fix no matter what the issue on your keyboard is -- assuming it's software related and not a physical hardware issue.