I have been using windows 8.1 pro 64 bit for a long time and every thing was good, all games were working well at high graphics quality, but I installed windows 10 pro 64bit 2 weeks ago, installed all the required compatible drives and also checked that I have the latest update but all my games are lagging really bad I can hardly start the game. I have tried a lot of things but nothing worked. My device is HP ProBook 450 G2, my AMD driver is R5 M255 2GB. I have the last update installed "Radeon Crimson 15.12"
Sometimes I got a "Radeon additional settings isn't responding closing program" but that doesn't happen frequently and most of time when I'm using it.