python and arduin ide for windows

I have been writing sketches for the esp32 for the last 16 months. Other than self inflicted errors I've had no real problems. After a short break (4-5 weeks) and several recent windows 10 updates, when I try to compile a known good sketch I get an error "can't access python27.dll......." in a temp (!) folder under local user.
Of course there is no python27.dll in the temp folder and the compile fails.

Does anyone have an idea about how to fix this? Thanks for any guidance offered.


My first move would be to reinstall the IDE