I can no longer open anything in photoshop from Lightroom and if I just try to open a photo using the open dialogue it opens a black square. Everything was working okay last night - tonight nothing works. My operating system is Windows 8. I have never been able to get things to work properly. When I tried to install Photoshop 2014 it never worked and I always had to use the original cc version.
Your system is simply configured poorly in terms of hardware acceleration or does not meet the requirements. If you provide exact information we may be able to advise.
Sometimes, 3rd party extensions or other utilities can interfere with Photoshop’s operation. Safe Mode starts Windows with a limited set of files and drivers. Try to run in Safe Mode. If you have any antivirus installed so disable it temporally and launch PhotoShop.