If you have lost access to your account, our automated recovery process can help.DIY: Modify Contact and Shipping Addresses セルフサービス
Use this page if you wish to change or modify your Contact and Shipping address for your Blizzard account.DIY: Change Your Email Address セルフサービス
Change your Blizzard account email address on this page.
Corrupted and damaged game files can create a wide variety of problems and errors.IP Release, Renew, and Flush DNS
A guide for releasing and renewing your IP address and flushing the DNS resolver cache.Deleting the Battle.net Cache Folder
Instructions on deleting the Battle.net Cache.