Garry's Mod won't launch

System hardware specs

  • Processor: AMD Athlon 64 bit Dual core 6400+ 3.22 GHz
  • RAM: 4 GB
  • Graphics Card: NVidia 9800 GT
  • Operating System: Windows 7 64-bit RC Build 7100

Various Gamemodes

When I launch GMod, it says ‘Launching Garry’s Mod’. After the message disappears, a white outline of a window seems to close. In other words, Gmod isn’t running. This happened the day after I installed all of Kermites weapons. I tried re-installing Garrys mod, then I reinstalled steam. I still get the same problem.


Put this in Properties -> Launch Options


Also, thanks for actually following the suggested format in the sticky. We :love: you too.

I love you.

It worked.