Lightroom CC not responding, will not open or close

[andrepontifex]

Hi there, I have had lots of trouble with my lightroom recently as I have not been able to open or close it. It stays constantly on a not responding status and therefore I am unable to open or force quit. I operate my lightroom catalog from an external hard drive which is only approx. 10% full. As for my computer its only about a week old and has more than enough storage. Before lightroom stopped responding it was extremely slow. Any ideas how to get my lightroom running again? 

[AxelMatt]

The first thing that you should try is to switch off the GPU support from the Lightroom preferences and check if that helps to fix the issue 

Go to Lightroom > Preferences > Performance tab > Uncheck "Use Graphics Processor" > Restart Lightroom. 

Adobe Lightroom GPU Troubleshooting and FAQ  

https://helpx.adobe.com/lightroom-classic/kb/troubleshoot-gpu.html 

If this doesn't help we need more informations about your environment. 

• Which operating system do you use? 
• Which version of Lightroom do you use? 

Please post the exact version number and not only phrases as "actual" or "newest". 

[dj_paige]

Adobe's confusing naming system has confused us all. Are you talking about the cloud-based software Lightroom or the desktop focused Lightroom Classic?