


There is another way you can set launch options for any game. Re-launch Steam using the and check if the error still persists.

Open task manager and end all Steam processes starting with SteamClientBootstrapper.If you have Steam installed in another directory, change the file path to that required directory. The final result looks like this “C:\Program Files (x86)\Steam\Steam.exe”-dx9 In the ‘ Target’ dialogue box, add ‘ -dx9’ in the end.Click ‘ Properties’ and head over to the ‘ General’ tab.Create a shortcut of Steam in the same directory.The default location is C:/Program Files (x86)/Steam. To launch Steam in the required version, we have to set a launch parameter at its exe file. This seems to eliminate the problem instantly. We can try launching Steam with the DirectX version 9.0. We have listed down a number of different solutions which can help in fixing the problem. What causes AppHandB1 to occur? There is no solid explanation as the problem may vary computer to computer. This can be really frustrating as even restarting your computer doesn’t seem to solve the issue. This is also possible while launching any other application. Many users experience a problem where their computer suddenly freezes and becomes non-responsive when they launch any game on Steam.
