I have a win10 KVM currently on build 1709. The KVM is nothing very fancy, typical setup with only a SATA controller passed through for win10 on a 4gb sata ssd. Host is Ubuntu 18.04 with 4.19.15 kernel
Windows tries to upgrade itself, and it will download the update say it’s ready to reboot but then fails to update. No warning messages or anything. I go look into windows update and it simply says it failed with 0xc1900101. Then it tries again. Rinse and repeat.
There is only one program installed in win10. Nothing else, not even AV. I have even tried to upgrade with a 1809 iso. Boot to the iso and the spinny circle on the bottom works for a few seconds, then reboots itself back to the “Press any key to boot to cd/dvd rom”