Windivert Driver Cannot Be Installed You Must Restart Your Computer Fix -

The error "WinDivert driver cannot be installed you must restart your computer" typically occurs when a previous version of the driver is stuck in memory or a registry conflict prevents the service from initializing Quick Fixes & Troubleshooting Manual Service Reset

Solution 1: The "Real" Restart (Fast Startup Issue)

This is the most common reason the error persists. By default, Windows 10 and 11 use a feature called Fast Startup. When you click "Shut Down," Windows doesn't actually perform a full cold boot; it saves the system state to a file to load faster next time. The error "WinDivert driver cannot be installed you

Alternatively, open Command Prompt as Administrator and type: shutdown /s /f /t 0 to force a complete shutdown. Do not use "Fast Startup" (a feature in

  • Do not use "Fast Startup" (a feature in Windows 10/11 that hibernates the kernel). To bypass Fast Startup, hold the Shift key while clicking "Restart" from the Start menu.
  • After the reboot, run the installer again as Administrator (right-click the setup file and select Run as administrator).
if (key != null) return SystemState.RestartRequired;

Related Articles