Windows 10 Printer sharing ❌ Operation failed with error 0x0000011b is a known Windows update security issue that started appearing around late 2021 when Microsoft disabled remote printing over SMB by default to fix a security vulnerability (PrintNightmare). Permanent Fix for Error 0x0000011b (April 2025 working method) You need to add a registry key on the printer host PC (192.168.0.100) to disable RPC encryption enforcement : 🔧 Step 1: Add Registry Entry on Host PC Save this as fix_0x0000011b.reg on 192.168.0.100 (printer host): reg Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print] "RpcAuthnLevelPrivacyEnabled"=dword:00000000 Save as .reg file Right-click > Merge Restart the PC ✅ Or Run this Command in CMD (on Host PC) cmd reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print" /v RpcAuthnLevelPrivacyEnabled /t REG_DWORD /d 0 /f Then reboot. 🔧 Optional: Full Batch Script to Fix 0...