I had a very old version of PS - CS2 to be exact. I currently have a monthly subscription. The old version was uninstalled but a folder remains - PhSp_CS2_UE_Ret. Can I safely delete this folder and its contents?
CS2 is very old and I don't think deleting it will hurt anything. Sometimes folders remain because of user defined custom presets and plugins, but if you don't see anything you'd miss, go ahead. CS2 is a fossil.