An unexpected error has occurred while updating diablo 3

I start the launcher and it doesn't show anything but the phrase "Updating Tools (0%)" at the bottom with no progress even after having it open all night and the Play button grayed out...

Also when I tried to install Diablo 3 (real version) from I have it downloaded and installing it gets to a certain point halfway throughout the bar and stops with no further progress even after having it open an entire night as well...

I would love to know why these programs are crapping out on me or if my computer is total garbage. Each group or usernames give full control in all options (the EDIT and Advanced buttons too). Please anyone face this problem knows how to fix this ?

Hey guys , I installed Open beta Diablo 3 today and when i launch it it says initializing in start and then after sometime pops a message " An unexpected Error occurred while updating required files . so i tried closeing the launcher and opening in it again, now it just says : Updating blizzard launcher (0%) Anyone else have this problem?or any idea how to fix it (i belive this patch have the patch number 17) Try with peer to peer disabled.You can also disable firewalls as this can cause network problems (remember to re-enable them again afterwards though).Make sure multiple instances of aren't running (remove all the processes, try again).If that doesn't help, delete the folder Battle.net/Agent (probably in your Application Data or App data directories, use search if you can't find it). This is helping people with some updating issues, don't know if it will fix yours. You can also disable firewalls as this can cause network problems (remember to re-enable them again afterwards though).

If that doesn't help, delete the folder Battle.net/Agent (probably in your Application Data or App data directories, use search if you can't find it). This is helping people with some updating issues, don't know if it will fix yours.If your launcher aint opening when you try to install the beta I made a lil guide for you guys how to solve the problem.It has helped a lot of players so far and I hope it can be of help to someone here at MMO-champion aswell.Diablo III Beta Installation Issue Fix [Quick Guide] Can anyone help me please, when I try to download diablo 3 beta it goes straight to 70%, and stays there, I tired to delete on Task Manager it goes to "Launching Blizzard Launcher" then comes back up and it goes back down to 70%, I don't have Windows XP Pack 3 either, so can anyone help me please?I was able to log in ONCE, but ever since then, I'm stuck on the "updating tools".Baixei Diablo no The Pirate Bay (infelizmente) mas na hora que abro o setup e aceito os termos de condições aparece isso: an unexpected error occurred while trying to install Ln Ln Ln Ln O q fazer para resolver?