Okay, I was facing the problem of not being able to load HB for some time with the launcher. I kept getting the error message for not the right build. So, Here's what I did to fix the issue. 1: I ensured I downloaded the correct bot for my region at the moment. 2: I Took a copy of my key from my old HB login. 3: I wiped my old HB folder and installed the update as a fresh. 4: I opened wow manually and logged right into the game. (chose a character and was stood in game). 5: I opened HB as an administrator (NOT the launcher). Worked perfectly after that. Hope this helps alot of you!