I'm having a devil of time with some ESP8266 boards: some seem to prefer the 1.65 IDE and (i'm hoping) some of my shiny new boards will use the 1.68 IDE. The problem is that Arduino wants to deinstall 1.65 before it installs 1.68. (on Win7 Pro)
To this point (and because of the kinds of boards we use) I have really old 21-23 installed, V 1.0 and 1.5 and of course 1.65 all on the same system. Now all of a sudden "there can be only one!" (cue ominous music - or Queen)
Any way around this?