The same here!
After the Windows 10 Anniversary Update my AMD Radeon Driver seems to be incompatible.
I did the clean install using Display Driver Uninstall and try the update as usual. Got freeze on 39%. HDD led turn off forever. Try to restart but not happens. HDD led won't turn on, the PC won't start and the display still Black.
Help please! Sorry for the english, its not my native language!