when i launch games (steam games like dota, pes18, pubg, or just other non steam games) it is just show black screen for more than 1 min and sometimes just not working (even the game is only 150 mb). Cant use windows button to go to desktop but ctrl alt del still working fine. Task manager show that the game is not not responding.
my games located on hdd (still got 400 gb free). I've tried to defrag and disable antivirus but still nothing. im using i7 7700k, gtx 780
any ideas? thanks!
update : restart make it back to normal but later this happened again