The Windows 10 May 2019 Update does not install on systems powered by AMD Ryzen or AMD Ryzen Threadripper processors with AMD RAID drivers prior to 9.2.0.105 and configured in SATA or NVMe RAID mode.
Updating your PC to the Windows 10 May 2019 update -- a major upgrade -- isn't necessarily click-and-go. I have a bunch of laptops that I'm in the process of (slowly) updating to the May 1903 update.
Windows Sandbox, a new feature that Microsoft announced will be included in the April 2019 release (now deemed Windows 10 version 1903, or May 2019 Update, and code-named "19H1") of Windows 10 Pro, ...