It is not the solution but it is a way to lower the windows boot time.
Follow these steps to fix the slow boot/start up on your Windows 10 pc/laptop with AMD graphics.
Step 1: Ctrl + R
Step 2: Type regedit.exe
Step 3: Ctrl + F
Step 4: Type enableulps
Step 5: Double click enableulps
Step 6: Change value to 0
Please stop to recommend that solutions...that workaround will make your lapdock consume like a 20% of power...that's not a solutions...AMD please fix it...you broke ULPS since driver 14.9
I edited the answer for: It is not the solution but it is a way to lower the windows boot time.
While AMD does not correct the bug.
i edited all entries of enableulps in the registry and it did not change a thing. Black screen, mouse cursor, slow boot still present.