PATCH WON'T WORK "ACCESS DENIED"

So, what gives?! I've disabled firewall and Bitdefender. It says "access denied" every time I try to patch. I can't play. PLEASE FIX!

Possible fix

Try running the patcher as an admin.

Alternately, download 1.3.1

Alternately, download 1.3.1 directly from the site rather than trying to upgrade via the launcher.

Proxy?

Are you accessing it via a proxy. We have a hugely crippled internet at work (I can't connect in-game), but the patcher works fine if I run it after setting the http_proxy and https_proxy environment variables.

set http_proxy=http://username:password@proxy.proxy.com:80
set https_proxy=https://username:password@proxy.proxy.com:80

Solution

I had this exact same problem. Try right-clicking on the program icon for the launcher, and selecting, "Run as Administrator". It worked like a charm for me. Nothing else I tried DID, and I was at it for almost two weeks.