I had exactly the same problem and here is the answer: update the driver for your video card. And when you update, go to the vendor website! (i.e. the vendor of the particular video card you have). If you don't know what kind of video card you have, use the commands: Control Panel/System/Device Manager, then double-click on "Display Adapter". It will display a tab called "Driver", which will give you the date of your current driver. If it is anything older than maybe a year, go to the vendor site and download the appropriate driver. My download was about 260MB in size. It also seemed to improve my screen resolution a little at the same time.
But there is more! Photoshop CC uses two things called OpenGl and OpenCL. I have no idea what they are, BUT, I think both of them must be selected in order for Lighting Effects to work on Photoshop CC. And where do you select these things? Edit/Preferences/Performance
And finally, check the box "Use Graphics Processor", then click on "Advanced Settings". Under Advanced Settings you will see
And you guessed it! Click on the box "Use OpenCL". I have no idea if the 30 bit display box should be checked - I was trying everything at one point.
Anyway, it seems like Adobe has adopted new technology somewhere along the way, such technology not being included in video drivers just a few years old. Personally, I think Adobe should have made more of an effort to highlight this problem and provide an easier-to-figure-out solution.
Hope this helps!
Frank