Have you checked on ADM site to see it there are newer drivers for your AMD Radeon R7 Graphics + R5 330 Dual Graphics. Photoshop is also known to have problens on machines that have more than one model GPU installed. Yout machine looks to have R7 and R5 graphics that may be a problem.
Today talked with technical support. They said that this is a known problem that they are still solving. Temporarily helps when clamped Crtl + Alt + Shift to start the program and click Yes.
I managed to solve the problem myself by adjusting GPU settings in the AMD Radeon software.
The Adobe support rep ( who was frankly hopeless) straight away went into device manager to disable one of the GPU's which made matters worse.
You would think Adobe support would be more conversant with AMD software considering a large proportion of their customers must be using AMD graphics but it seems not.
They did however confirm to me what you were told regarding the known problems with libcef.dll - taking them long enough to fix it.
Thank you very much for your reply.
what was the solution. if i missed it.