Downloaded Teso via Steam and now it's loading again via the launcher?

I downloaded The Elder Scrolls Online via Steam, which took 24 hours. I was happy when it finished, but when I opened the launcher, it was "updating," but it only reached 5% after 1.5 hours. Even though it says I'm at 28 mb/s (which is strange because I only get 1.7 mb/s on Steam), it…

Steam doesn't recognize existing The Elder Scrolls Online files?

I have The Elder Scrolls Online installed on my laptop, but not on my PC. Because I get throttled if my data usage is too high, I can't simply download the 67 GB to my PC. Since TESO doesn't have a backup function on Steam, I split the entire file from common into several archives…