Set-ItemProperty -Path "HKCU:\Software\Microsoft\Windows NT\CurrentVersion\Windows" -Name "LegacyDefaultPrinterMode" -Value 1 If Windows 11 keeps changing your default printer back, check these common culprits:
Press Windows + R , type control printers , and press Enter. This opens the Devices and Printers window directly. how to set default printer windows 11
Right-click the Start button and select Windows Terminal (Admin) or PowerShell (Admin) . type control printers