WiFi only works after restarting, but not shutting down from Windows
I'm facing this issue and I believe Windows 10 has a fast startup feature which doesn't shut down your system but instead puts your kernel in a deep hibernation state to boot faster. This unfortunately means that when you boot into ubuntu, you aren't performing a clean boot. You can try turning this off by following steps here. If that works, awesome! Else I'm afraid you might have to resort to restarting windows for now