What To Do About Bad Fonts On Your Windows 10 PC

 What a life-saver - I was about to give up and live with the pain..

For a change, M$ saves the day.. - without knowing, of course, the pain they had caused..

https://www.bleepingcomputer.com/forums/t/630110/ugly-pixelated-jagged-fonts-on-windows-10/#:~:text=1.,and%20restart%20all%20your%20programs.

Google "Windows 10 some letters very thin" (in my case, capital I, then m, o, r, c ..)