SU 2018 pro will not save workspace

For the last 8 or months Sketchup will not save the workspace. Trays, toolbars, extensions etc. all vanish or load to the drawing area. Even when I disable an extension so they don’t load with the extension manager they return when I start Sketchup back up. I have followed all of the suggested fixes on this problem posted back in 2017 and 18. I have removed the program and re-installed many times. I have run the installation as Administrator. I also deleted any other files left over after removal in the app data section. Need Help.