@maegul @const_void

My father, the retired technician, would immediately go into the settings and start making changes even though he didn't understand what he was doing and would forget what he had done. I got tired of guessing.

I was amazed that I couldn't find software to lock him out of making changes. I tried a few, but like a teenager, he found ways around them. So I sat down and with a long list locked him out of installing software, remote access, settings, etc. It took a long time, but I nailed down about 95% the first time, then swept up the last bits later.