Install Windows from USB Drive
Install Windows Server from USB
Download from
https://www.microsoft.com/en-us/evalcenter/evaluate-windows-server-2019
Then, put on USB via one of the following
https://www.diskpart.com/server-2019/windows-server-2019-iso-to-usb-1984.html
https://www.itechguides.com/burn-iso-to-usb/
If using Windows 7 to create, need to mount ISO (Win8 and greater already have)
https://wincdemu.sysprogs.org/download/