i remember having something like this happen to me with tf2... hm...
did you try a restart and list everything you've tried
yes
so far i've
restarted steam and computer
reinstalled cs:go
deleted clientregistry.blob
reinstalled directx from the cs:go files
deleted the installscript.vdf file
moved the files from the downloading folder to common folder. But for some reason the files kill themselves in the process
i've also spammed the play button
there's probably a few things i forgot about though
It's also worth mentioning the game runs fine from the downloading folder but it starts in insecure mode