After so many years, there still is no solution to this problem online. So, I had to try to fix it on my own.
Update: This also fixes the 00000000-0000-0000-0000-000000000000 error!
Two things worked for me:
1. Manually delete all stuff related to BattleNet from my computer (registry and disk) then try to reinstall:
Full of wisdom, Blizzard spreads its crap all over the computer:
- Manual clean up
- c:\ProgramData\Battle.net\
- c:\ProgramData\Battle.net_components\
- c:\ProgramData\Blizzard Entertainment\
- c:\Users\All Users\Battle.net\
- c:\Users\%UserName%\AppData\Local\Blizzard Entertainment\
- c:\Users\%UserName%\Documents\StarCraft II\
- c:\Program Files (x86)\Battle.net\
To delete the registry use this REG file (save the text below in a .reg file and run it OR go there and delete the keys manually)
Windows Registry Editor Version 5.00
[-HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Blizzard Entertainment]
[-HKEY_CURRENT_USER\Software\Blizzard Entertainment]
Make sure no Blizzard process is still running OR restart Windows to terminate all Blizzard processes.
Turn off the firewall and start the installer.
2. Actually this is easier but it doesn’t always work: when the installer is stuck, look for a process called Agent.exe. Kill it. The installer might continue immediately. I figured this out, by looking into the log files.
3. In case the installation is corrupted, try this “DOS” commands (as admin):
net stop winmgmt
winmgmt /resetrepository
net start winmgmt
4. Blizzard DeScrewer
I created this program that will help you reset the BattleNet installation. Basically you could say it is an over-glorified uninstaller.
The Blizzard Installer will give the impression that will get stuck again at some percentage (maybe even 45%). It isn’t. Give it a bit more time. Leave it open and do something else. Also make sure the installer has access to the Internet.
Disclaimer: The program is provided “as is”.