No EPs showing in launcher (SOLVED)

I'm just re-installing all my TS3 games on a new computer via Origin. The EPs and SPs are showing as installed in Origin but not in the launcher. I found a couple of threads about this, which recommended deleting the EP/SP folders in C://Program Files/Origin Games, then reinstalling. Unfortunately, when I try to that I get told I need administrator permission, even though I am the administrator! Is Origin protecting these files somehow? Is there another workaround for this?

Alternatively, is there a way to just copy over the whole game file (not just the docs file) from my old computer, or would that trigger DRM issues? The old installation was working fine. I was pre-1.69 then, so I didn't have to deal with any of this Origin or launcher nonsense.

Edit: Fixed it I think! All I had to do was set my Origin to online rather than offline. I guess this is a way of forcing people to stay online. So this seems to be solved for now. Next up: test the game and install store content!