I sent my laptop to Lenovo Service again in November because Windows Update randomly nuked BIOS while silently installing firmware update (what the frick, Microsoft?). Lenovo reinstalled the entire thing once again and I haven't seen the issue since. Lenovo reinstalled the laptop for me, disabled integrated GPU and then installed NVIDIA drivers only so I assume the issue might have been caused by Windows' inability to work with two GPUs. This is something Microsoft never addressed and so AMD+NVIDIA setups are broken beyond hope.
Frankly after having so many issues with Windows on this laptop I am honestly considering buying a Mac next time. I am very much done with Microsoft's lack of professionalism regarding NVIDIA Optimus issue and the general lack of support for this feature by neither Microsoft, AMD nor NVIDIA. Moreover the amount of issues caused by Windows Update's mandatory updates made me absolutely hate this OS.
I already disabled the integrated GPU but I sitll have this issue.
WIll MS actually acknowledge this?