Latest version update (Win10 Home 2004 19041.508) seemed to go fine until after recent restarts Acer V3 571G (8GB) laptop

Issue 1: Sleep option gone.
Completely gone from power menus.

Issue 2: Display adapter's with warning triangle.
Both Intel HD Graphics 4000 & NVIDIA GeForce GT640M had error triangle. Both claim to have latest available drivers.
I've uninstalled both & rebooted. Now only Intel card has error.

Issue 3: Continuous "Your device will restart to update" notifications
Non-stop recurring after every restart.

Any clues how to fix?

Thanks in advance