Battle.net client UAC prompts after reinstalling

Some time ago, the B-net client broke after an update, so I reinstalled just it, but not Hearthstone. It worked and found HS, but ever since, whenever I launch the B-net client, the ‘Battle.net Update Agent’ asks for UAC permissions. Is there any fix that’s not annoying to deal with?

PS Might be similar to this closed topic: Battle.net keeps asking for UAC permissions when launched .