I'm staring at an unresponsive PS desktop in Win 11. Task Manager does not report PS as unresponsive but unresponsive it is indeed. I am simply attempting to save an image to a local drive, not a network drive or a cloud linked drive. What is the point of processing an image that cannot be saved? No other programs are open, well now this browser is, the anti-virus is Microsoft defender.
A system hang or freeze requiring a computer restart usually means a low level failure such as a driver (bad video card driver, etc), failing hardware (hard disk, video card, etc.) or damaged OS installation. It may help if we could see your Photoshop System Info. Launch Photoshop, and select Help >System Info...and copy/paste the text in a reply.