How to fix error error-reply-message-mismatch in Windows 11

Solution Steps

1. 1 Press Windows key + R, type 'services.msc', and press Enter. Scroll down to 'Remote Procedure Call (RPC)' and ensure it's running. If not, right-click and select 'Start'. Also check 'DCOM Server Process Launcher' and 'RPC Endpoint Mapper' are running. These services handle inter-process communication, and if they're stopped, replies can mismatch.
2. 2 Open Command Prompt as Administrator (Win+X → Terminal (Admin)). Type 'sfc /scannow' and press Enter. Then type 'DISM /Online /Cleanup-Image /RestoreHealth' and press Enter. This repairs system files that might be causing the mismatch.
3. 3 If the error occurs in a specific application, reinstall that application. Uninstall it via Settings → Apps → Installed apps, then download the latest version from the official website. This ensures the application's components are consistent.
4. 4 Check for Windows updates. Press Win+I to open Settings, go to Windows Update, and click 'Check for updates'. Install any pending updates, as they may fix known bugs.
5. 5 If the error is network-related, reset network protocols. In Command Prompt (Admin), type 'netsh winsock reset' and 'netsh int ip reset', then restart your PC.