It seems every time Alibre updates it saves another .exe in C:\ProgramData\Alibre LLC\Alibre Design\updates. Over the years it has accumalated to 4GB. Can I just delete these files with no worries of bricking something?
Yes you can. If you ever need the latest or past installers, you can now get them on the Alibre website under downloads, so the updater downloads are not needed once they have been used to install your current version.
I've got over 25GB of Alibre/Geomagic installers stashed away on my NAS!!! That's the trouble with multiple 16TB disc drives, you never delete anything
