1: extract mouselifter.zip to C:\
2: if you did it correctly, you should have a folder called "mouselifter" in C:\.
3: start a 32-bit program WITH ADMINISTRATOR RIGHTS (recommended: puush, gyazo, skype);
4: start your injector and inject mouselifter.dll from C:\mouselifter\dll to your 32-bit program.
5: close injector completely and start cs:go
6: after 10 seconds you will hear a boop =)
IF NOTHING WORKS INGAME, THEN YOU DIDN'T RUN YOUR PROGRAM AS AN ADMINISTRATOR
if it still doesn't work, try a different injector and a different process
injector i used: process hacker 2