[Solved]Battle.net installer will not start!

Desktop App Tech Support
1

This is the first time I have attempted to use Blizzard’s forums so forgive me if I seem like I have no clue what I’m doing.

Recently, a few friends from work invited me to start playing Overwatch and WoW with them and so I decided I’d give it a shot. I went onto the website, downloaded the battle net setup executable and continue to get the same error after multiple attempts to fix. Immediately upon starting the battle.net-Setup.exe, I’m met with an error window. The window tells me this, “We couldn’t verify a digital signature. Follow the steps in this support article to fix this issue.” It gives me the error code BLZBNTBTS00000011.

I have scoured the internet to try and find a reasonable fix and I have tried everything I can find. I tried the steps in the error code it gave me; installed the certificate and everything, following every word the site told me. I then went to try cleaning my PC using malwarebytes to see if anything was corrupted and everything checked out clean. I then tried opening a whole bunch of ports in my firewall that Blizzard suggests on their Firewall page, and still nothing. My computer clock and date are perfectly in sync with my location and I am unsure what to do.

I know this is a handful, but I just want to be able to play these great games with my friends. Any help would be appreciated. Thank you and have a nice day!
- A very lost soul

2

Hey, FluxPlays! Thanks for trying the steps on the main support article and a few other steps. With it persisting, could you try seeing if the Application works on a New Admin account while on the new admin account, run through an image repair scan and file checker?

Once done, a Windows update can also resolve this error. If it continues, could you provide the Windows version? Press Windows Key + R, and type in winver. This should bring up a window, could you provide the OS Build information?

For Windows 10, Version 1803 and 1809 gets stuck on updates, and sometimes requires manually updating to 1903, here.

3

And like that, it works! Thank you so much! My system was running 1809 so after updating, it worked perfectly! Again, many thanks from me, myself and I!

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