Cannot upgrade Windows 10


I have a Lenovo laptop and non-UEFI installation of Windows Enterprise on it. I'm stuck on version 1803. When I try to upgrade to 1909, it downloads and installs it but after reboot no OS cannot be found until I go in to BIOS and enable legacy mode. When I then log in to Windows and open Updates, it says "we couldn't install this update, but you can try again (0x80004005)". How can I upgrade Windows?

asked on Super User Mar 29, 2020 by Azimuth

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