I was getting that annoying loadhandle.cpp error on Windows 8 over and over and couldn’t seem to repair it because the launcher would crash before it got to the point where repairs take place. My friend helped me see the mass of corrupt files in the appdata folder using this in command line:
dir “APPDATA\Guild Wars 2”
Entering the following in command line fixed it for me :
del /q “APPDATA\Guild Wars 2\*”
I’ve just made this post for anyone else who comes along with the same problem in the future. Basically it just clears the user data the quick command line way, I know it’s been noted before but it’s a possible fix so there it is again. I hope that helps people in future.