Microsoft has pulled an AMD driver from Windows Update after numerous people reported that it prevents Windows 10 from starting and displays an “INACCESSIBLE BOOT DEVICE”” error. Microsoft pulled the driver from the Windows Update approximately 21 hours ago. The driver is primarily affecting owners of the Gigabyte X570 motherboards. Windows 10 fixed the issue for many users through the Automatic Startup Repair feature that runs after failing to boot Windows 10 a few times. The error is commonly caused when Windows 10 attempts to start the computer and cannot access the configured boot disk for some reason.”
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-pulls-windows-10-amd-driver-causing-pcs-not-to-boot/