SONY VEGAS WONT WORK ~ PLEASE HELP :d :( :O

Hello reddit, everytime i try to render my video on sony vegas it just gets stuck on 22%, ive tried going to prefrences and turning on multicore and multi streaming and changing the compatibility to Windows Vista, ive also tried restarting my pc but it just wont render, no videos will render, PLEASE HELP! :( I really want to render this video... ;(