I was told by Adobe that I had to have the latest Windows in order to install Elements 2020. So I update Windows to 2004 and all heck broke loose. Mostly, incredibly slow performance, even on simple browser requests (with 100Mbs internet). Taking advice here, I rolled back to the previous Windows version, and all seems to be working normally again.
C'mon MS. I shouldn't have to waste several hours beta testing your latest release!