In reply to Marco Atzeri: """ Some time ago I put a script here: https://stackoverflow.com/questions/46829532/cygwin-save-package-selections-for-later-reinstall """ This has been very useful for me. Is this in a git/other repository somewhere? If not, I think it might aid discovery for it to go with some other useful scripts in this repository: https://github.com/michaelgchu/Cygwin_Specific_Repo. What do you think of this idea Marco? Hamish McIntyre-Bhatty