Hi. Everything worked well before the April 2018 update, but after I updated my Windows my League of Legends client won't open (it's just a black screen). But if I launch it prior to starting streaming it works, although the longer I stream the more FPS in-game I lose. If I don't stream and OBS is launched - the game works like a charm - no FPS drops, client launches etc. Don't know what happened here to be honest, I even rerolled my Windows to delete all of my programs/drivers etc and to no avail. It's the only game that I've got a problem with. I can run Witcher 3 with high settings at 40 FPS easily. My specs: MSI B350 TOMAHAWK, 16GB DDR4 RAM, GTX 970, Ryzen 7 1700. I clean installed my GPU drivers - dunno what's left anymore. Looking at logs, but I can't see anything wrong - maybe someone with a fresh perspective can help me. I'll post 2 log files, each from a different day - in both of them i tried launching a League game and my FPS was like 10-18 all the time. Please help!