Originally Posted by
M4xC4v413r4
Anyway, i got a little confused after reading all the posts but from the initial post i would say it's the same "problem" i have and the only thing i do is i go to the WoW folder and do Right Mouse Clique on the Launcher.exe and do Run as Administrator and it's fixed. Some times it downloads the patches without me doing this because it asks for permission when it gets to 10%, but usualy after it finishes and tries to patch the game it gives me that error, in that case i go to the WoW folder and Right Clique the patch file (example: WoW-3.3.3.11685-to-3.3.3.11723-enGB-patch.exe) and Run as Administrator.
By what i've seen, i think you've done all of this (unless you've done something wrong....) since Cilraaz already said these things, he just said how to do them in a different way.
btw, i also don't have it installed in Program Files or anything like that, i have it on it's own HDD