Unfortunately, there's currently no way to simply remove Game Guard yet continue to play the game as Game Guard integrates itself into the game client, meaning you can't run the game if Game Guard isn't present. The only way to remove Game Guard is to remove the game as well.
How to get rid of it:
If you're unlucky enough to be leeched by Game Guard, here's how to rid yourself of the software.
Uninstall the game which Game Guard is bundled with. While this won't uninstall Game Guard, it will remove some of the .dll files (Dynamic Link Libraries) which Game Guard needs to communicate with the game.
Browse to the install folder of the original game and locate the 'Game Guard' folder. Chances are it has been left behind by the uninstaller, so delete the file from the directory and empty the recycle bin.
Make sure you can view hidden system files, and locate the following files:
npptnt2.sys
nppt9x.vxd
They normally reside in the Windows\System32 folder. Once you've found them, delete them.
The next part is the tricky part as it involves editing the registry. Go wrong here and you could render your operating system unusable, so be careful. It might be a good idea to create a system restore point before going further.
To run the registry editor: Click Start > Run > then type 'Regedit' without the quotes.
Browse to the following branch:
HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Ser vices\\NPPTNT2
Remove the entire branch. Close Regedit and reboot your PC.
Download and run a good anti-rootkit detection program, such as Sophos' Anti-Rootkit scanner and run a full system scan. Remove any files found by the software and reboot your PC.
And that's it!
Read more:

how to this plzz leave some video tutorial!!!1