Windivert Driver Cannot Be Installed You Must Restart Your Computer <Top 20 CONFIRMED>

Manually removing the service key often breaks the "must restart" loop. Press Win + R , type regedit , and press Enter.

This ensures the driver installation runs under the SYSTEM account, not just admin. Manually removing the service key often breaks the

Tip: Some users found that manually copying WinDivert64.sys into C:\Windows\System32 resolved persistent installation errors . 4. Clean the Registry (Last Resort) Tip: Some users found that manually copying WinDivert64

Navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WinDivert . and Delete the WinDivert folder. Restart your PC. Summary Checklist Old driver stuck Run sc delete windivert in Admin CMD. Windows Security block Turn off Memory Integrity in Core Isolation. Incompatible software and Delete the WinDivert folder

Windows maintains a PendingFileRenameOperations registry key (under HKLM\SYSTEM\CurrentControlSet\Control\Session Manager ). If a previous installation attempted to overwrite windivert64.sys but the file was in use, Windows schedules a replacement on next reboot. Subsequent installers detect this pending operation and demand a reboot before proceeding.

If WinDivert’s driver is already loaded (e.g., from an older application crash), the service control manager may list it as running but in a degraded state. The installation routine checks via SCM and, if the driver cannot be stopped or unloaded cleanly, it flags the system as requiring a restart.

// Trigger the UI shown in section 2 ShowRestartPrompt(); return;