Fix Printer Error 0x00000bc4 "No Printers Were Found"

After updating to Windows 11 22H2+, your network printers disappeared and "Add a printer" says "No printers were found" with error 0x00000bc4. Microsoft changed the default RPC protocol, breaking network printer discovery.

The Fix

Run this in an elevated PowerShell:

# Create the RPC policy key if it doesn't exist
New-Item -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows NT\Printers\RPC" -Force | Out-Null

# Set RPC to use Named Pipes
Set-ItemProperty -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows NT\Printers\RPC" -Name "RpcUseNamedPipeProtocol" -Value 1 -Type DWord

# Restart print spooler
Restart-Service -Name "Spooler" -Force

For domain environments, use Group Policy:

Computer Configuration > Administrative Templates > Printers > Configure RPC connection settings
Enable > RPC over Named Pipes

Verify

Open Settings > Bluetooth & devices > Printers & scanners > Add device.

Network printers should now appear in the discovery list.