Photoshop not load the user measurement presets file Photoshop does not recognize type of file

Today I am getting this error messsage when I try to open any photoshop file:

"Photoshop not load the user measurement presets file Photoshop does not recognize type of file".

I have tested it on loads of PS files which yesterday I could open fine. I recently updated to PS27.0 in c reative cloud. I have tried uninstalling and reinstalling Photoshop but getting the same message. Need help with this ASAP!