I have successfuly turned Lenovo OneKey Theater to normal but I cant uninstal it. (it does not appear in 'uninstal programs')

Moreover, 'Synaptics TouchPad 64-bit Enhancements has stopped working'...

Hi,
today i have updated from W7 to W10 on my Lenovo Z580. Now I can not open settings and Windows10 apps like Calendar, Edge,... (and calculator as well - "Explorer.exe element not found"). Tried...