Gmod Crashes Steam

so i recently got a new computer, well not new but its fairly decent for what i need it for. It is a dell precision t3400. I installed garrys mod on it yesterday and went to play and it crashed, steam crashed with it. I looked around for fixes, i deleted the bin folder, reinstalled the game but nothing is working. I do have addons that are being downloaded, i tried to let them download but the game still crashes, as well as steam. No other game does this. Has anyone else had this issue and found a fix for it?

How big are the addons and how many addons do you have?

Delete a few addons then start Gmod up.