To get back the old start menu, open regedit, go to...and change value of RPEnabled from "1" to "0"
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer
After that make restart.
Theres lots of bugs and unfortunately drivers for DX11 Ati 5450 aren't stable for me, overheat, 50%less framerates and Firefox doesn't recognize my video card, had to enable GPU support in settings.
IDK why msoft finds time to make Win work on arm and x64 but hasn't time to make stuff work and behave correctly. Maybe they added features in last minute but why did they post that they tested everything many hours and worked didn't crash and thought it's ready lol.