For what OS? Are you talking about 1903 for Windows 10?
This could mean basically anything.with high speed internet ?
Windows 1903 (OS Build 18362.86)
I get 95 Mbps for my Internet. It took me about an hour to download and install.
Did you do this on a laptop or a desktop? Mine was a desktop. Mine was (Ethernet cable). Were you hardwired (Ethernet cable) or wireless?