How do I uninstall this update, please? It's broken my split screen options and is causing hangs...

I don't see "Windows 10 Insider Preview 21370.1 (co_release)" listed in the uninstallable...

It's also getting quite hot.

This is a very strange problem...

My Win10 32b Linx Vision 8 "thinks" it is connected to the charger when it isn't. So, it's in a persistent state of charging, even the battery icon is animated...

Go to device manager and uninstall your network card, then when it has been uninstalled scan for changes (under action) and this should fix it. Worked for me.