Download and install Advanced Micro Devices, Inc. AMD Radeon R5 M255 - driver id 19551
AMD Radeon Software Crimson Hotfix Driver v.16.1.1 download for Windows - deviceinbox.com
HP ProBook 450,Core i5-5200U, 8GB DDR3 Memory, 500GB HDD,AMD Radeon R5 M255 (2GB) Graphics,15.6 HD Display, wireless 1x1 Windows 7 Pro / Windows 8.1 Pro 64-bit Notebook- M5G26UT#ABA at TigerDirect.com
drivers - Intel HD Graphics And Radeon Graphics - Super User