failed to create D3d device in gmod

[efraimcamacho]

how to fix this help me plss beacause this is my fav. game (sorry for my bad spell)

 

[himnextdoor]

You should go to Windows Update and have a look in the 'Optional Updates' list.

Is there something for your video card there?

Then you should have a look and make sure that you have Microsoft .NET framework installed and updated.

See if any of the critical updates apply to you and download as required.

And make sure your graphic drivers are updated.

Does this game use Java? Make sure you have the correct version installed.

Does any of this help?

 

[hd7850]

You have not specified game name but, see here some fixes, and maybe your game is there in the guides.