ACR no longer opening.

Sorry for the long post. I have the latest vesions of Bridge and PSCC on a Windows 10 desktop. I have been re editing some old olympus. (.orf Raw) birding files all week from Bridge to ACR and utilizing the Denoise feature and masking and brushing to increase quality to crop and print some images.

Up until Yesterday!

Upon resuming in Bridge this morning, I suddenly get a message when I try to pass the files to ACR from Bridge or from the ACR filter in PS, that ACR requires GPU acceleration and my system doesn't support it when it had been working just fine! I had spent the entire day today trying every suggested fix including uninstalling and re installing from Creative Cloud App and even trying to roll my versions back, all to no avail. Photoshop says my Graphics card is compatible and is using it for some of the new AI features and I made sure I have the latest Nvidea driver . Today I was able to download an older version of ACR directly separately from PS and it opens, but I have lost all the new features, primarily Denoise.there were no prior changes to my computer, I'm frustrated to say the least! Any suggestions