Recently I upgraded my Windows 7 SP1 laptop to Windows 10. After the upgrade, I find that booting is a lot slower than it used to be. After 15 seconds of boot time, I am stuck with a black screen for 45 seconds before I can access the desktop. I've heard that upgrading my graphics drivers might solve the problem, but there don't seem to be graphics drivers for windows 10 for my graphics card (AMD Radeon HD 6520G). The AudoDetect utility gives me no driver, I can't find the driver using the manual menus, and when I try to download ATI Catalyst, I find that the video driver fails installation. Does anyone have any suggestions on how to solve this issue? When will ATI release the right drivers?