Unexpected error occurred while updating diablo 3
This can often be caused by closing the downloader early.
Though the downloader may show 100%, please allow some time for it to fully complete.
Rest assured that your loots are kept and sorted (salvaged, sold, stashed) according to a configurable pickit list.
Avoid ground effects (molten, arcane...) according to your choices.
(Please note that Diablo 3 will not be available for play until May 15 at a.m. If you're still running into this issue, there may be an error in your foreign language appdata files.
Some players have found a workaround, but please be aware the steps they provide are not something we can currently support.
Blizzard's advice in full: "If your installation disc has been ejected, please reinsert and try again.
If not, or if you keep seeing this error, log in to and install Diablo III digitally" - If you downloaded the installer digitally, this error indicates that it did not convert the files correctly.
I've searched for threads related to this issue (as well as googled), but I could not find any solutions.If it matters, I have the official korean and english language packs installed.Edit: It turns out Peerblock was causing the issue.Error 12 - This error is caused by the Global Play feature being disabled until all regions are active. We're aware and are working to resolve it as quickly as possible.Please make sure you choose the correct region when starting the game as per this Error 0 - The service is undergoing maintenance, please try again later. Error 3004, 3006, 3007, or 300008 - There are a number of possible causes for these errors. Error 315300 - If you're sure you're typing your correct account information, check to make sure no additional spaces were added before or after your email address.