Windivert Driver Cannot Be Installed You Must Restart Your Computer Jun 2026

For most people, will solve it. If it keeps happening, follow steps 2–5.

– it’s a legitimate library used by many networking utilities. However, some malware can abuse it to inspect/modify network traffic. If the error appears unexpectedly from an unknown program, run a malware scan (Malwarebytes, Windows Defender Offline) to be safe. For most people, will solve it

. While a restart often clears the driver from memory, it may not remove the service entry if it's stuck. Quick Fixes Run as Administrator For most people

Troubleshooting: "WinDivert driver cannot be installed, you must restart your computer" run a malware scan (Malwarebytes

// Optional: Check Windows Update reboot required using (RegistryKey key = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\RebootRequired"))