I have dual OS chuwi Hi8 Pro and yesterday updated without problem. You can switch off hibernation via command line and turn off page file, so you’ll get extra space
It started updating yesterday, then went to reboot and now I have UEFI boot errors. :/
I ordered a USB OTG hub a few days ago, and it should be here tomorrow, so looks like I have to re-image windows regardless. Thanks for the help, though. I’ll let you know how I make out.