Team Fortress 2 launch error
Hello,
I am hoping to get assistance on my game. I have played Team Fortress 2 for a month but now on launch it produces an error shown below. I have never seen such an error and I have not installed any other software.
Error message:
SteamStartup() failed: SteamStartup(0xf,0x0012E5BC) failed with error 1: failed to take master pipe connection lock








