The most important thing is to make sure your hack is NOT patched!
If you are getting error messages with an error ID (Pop-up windows), please check this link for solutions. If you are getting an error about missing a file, here are some download links to commonly missing files. (If the one you need is not on that list, PM or VM me and I will find it for you.)
If you need a new injector, go here and look for a recently posted one. (I would post a direct link to a working one, but this thread will be around for a while.)
Make sure your injector unpatched is set up correctly. Mistakes here are VERY common. Universally working settings are as follows:
1. Injected into Engine.exe
2. Make sure auto-inject is on.
3. Make sure close after injection is on.
If none of this didn't fix your problem, or you know it is injecting correctly, check the thread for the hack you have, and make sure it isn't patched and that it works for your OS. Also check to make sure there aren't any specific instructions, and that you are using the right hot keys/menu key.
If you are still experiencing problems, PM or VM me or ToxinJr for help.
Check back often, as this thread may be updated by me or staff.