BLZBNTBGS80000011 tried all suggestions

[Raven-24485]

Similar problem. Solution are not found.
And this solution does not help:

[Solved]Battle.net installer will not start!

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 …