This post was initially made 12 days ago (as of this edit). I’d been experiencing the endless loop for a good 24/48 hours at this point; I’d open Bnet, it’d update and it would continue to do this while I played or when I closed the game and tried to open it again. Since then I have:
Uninstalled / reinstalled Bnet.
Uninstalled / reinstalled WoW (that was fun on a connection that’s almost dial up levels and is limited).
Removed all addons / replaced all addons with their most up to date versions.
Tried the Beta Client and then back to the Live version.
Tried several suggestions around the forum but that went nowhere either.
Nothing has worked and since it is relevant I’m on the latest version of Win10 (think it just had a feature update actually).
Don’t seem to have errors / permission things, it just loops endlessly and if I dare leave it open it will keep doing these little updates every couple of minutes before reclaiming the space and being quiet until another couple minutes pass.
Update01: I did notice one thing though. For years I’ve had the WoW folder on an external SSD (to free up the main drive) and it’s caused / received no issues. Curious, I actually moved the entire WoW folder to the main drive and tried launching it from there. It succeeded; the loop ceased! I opened and closed it a couple times to make sure and it didn’t attempt to update again. I checked what had changed; the folder permissions (since the main drive has the Security Tab while the external SSD does not). In the end I moved the entire thing back to the external SSD and sure enough the loop has returned. So, by that observation it might have something to do with permissions, but I have no clue why it would start now (well, twelve days ago) since it’s been perfectly fine for years. Just wanted to add that to the report.