Hi @NeilS ,
Here is a similar thread: https://www.raspberrypi.org/forums/viewtopic.php?t=118442#p804313
The main process is as follows:
bcdedit /set quietboot on
bcdedit /set bootux Disabled
bcdedit /set bootuxdisabled on
And here is a another method about registry: https://itectec.com/superuser/hide-the-logon-screen-windows-10-iot/
Best regards,
Seeya
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