You can customize the manufacturer logo and add a Windows logo if you like through the OEM information feature. This is done by placing your logo image in the C:\Windows\System32\oobe\info\ folder and adding a small text file oemlogo.b
Yes—you can absolutely combine the OEM logo file copy and the registry assignment into a single PowerShell script for use in deployment or after Windows setup.
This tutorial will show you how to customize the OEM support information for your Windows 10 PC. You must be signed in as an administrator to be able to customize OEM support information.