Gmod crashing on startup

first i have to say, yes it is this problem again. This is the 3rd time it has happened to me. Right when i start gmod it says hl2 has stopped working then shuts it down. I reinstalled gmod, i reinstalled steam, i deleted all my addons, i set the dxlevel to 80, 81, 90, 91, and 95 and it keeps crashing. My computer can take up to dx 11 so… i have no clue.
Can anyone help me?

i got it. I needed to verify the thing for tf2