Hello,
Thank you for posting in the Microsoft Community forum.
It is advised to disable Driver Signature Enforcement Temporarily, while ensuring that the drivers you install are from a trusted source:
Go to Settings > Update & Security > Recovery > Restart now under Advanced startup.
Choose Troubleshoot > Advanced options > Startup Settings > Restart.
Press 7 to disable driver signature enforcement.
Try to install the printer driver manually.
Best regards
Jacen
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