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TL;DR
Sure.
Set up a brand new OS on a clear partition on a secondary drive (i.e. the exterior SSD), then copy the functions from the outdated Functions folder to the Functions folder on the brand new set up.
Drag and drop set up
Most functions (if not all) that are put in by merely dragging and dropping may be copied to any folder (be that on one other, exterior disk or the inner disk) and run from there – verify it your self.
Seeing as exterior exhausting disks are handled as directories, by the OS, as soon as they’re mounted, this implies you possibly can run the Software from nearly wherever that’s at present mounted.
Observe: Some functions might moan and pop up a dialog stating that they need to be run from the present “official” Functions folder of the at present working OS, however often that may be ignored.
Set up from package deal
Nonetheless, functions put in utilizing a package deal (i.e. by opening a .pkg file) can’t be simply moved or copied1, and it’s best to re-install these appropriately (utilizing the package deal) on the brand new OS drive.
Footnote
1 It is because packages often set up numerous (and probably quite a few) recordsdata in a number of locations and with out fastidiously inspecting the set up log file, it’s a ache to maneuver all the particular person recordsdata of their disparate locations, to the corresponding location on the brand new set up.
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