u/Adept-Succotash-9811

So in my MW 2, which I recently installed and reinstalled multiple times because I didn't know what the issue was at first, it just refuses to open no matter what I do, then after some research I found out that i need to go to HKLM\SYSTEM\ControlSet001\Services\atvi-randgrid_msstore and confiuge it a bit but the thing is there is no \atvi-randgrid_msstore in there or somethinmg that comes close i truned off memory or core isolation because some forums said so but still nothing verify it and what still nothing i have been trubleshoothing it for like 2 days and now i am out of leads any help anyone?