Windivert Driver Cannot Be Installed You Must Restart Your Computer (2026)

If none of the above steps work, perform a of Windows. This prevents third-party software (other than Microsoft services) from loading.

If other network drivers or software are installed, try disabling them to see if they are causing conflicts: If none of the above steps work, perform a of Windows

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

| Step | Action | Expected Outcome | |------|--------|------------------| | 1 | Open cmd as administrator and run: sc query windivert | If exists, note STATE . If RUNNING , attempt sc stop windivert . | | 2 | Check pending file renames: reg query "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager" /v PendingFileRenameOperations | If non-empty, especially with windivert paths, reboot is mandatory. | | 3 | List loaded drivers: fltmc filters | Look for windivert . If present but version mismatch, reboot needed. | | 4 | Verify driver file: dir C:\Windows\System32\drivers\windivert64.sys | If file exists but cannot be deleted/modified due to Access Denied , handle via takeown and icacls . | | | 2 | Check pending file renames:

Restart your computer and try launching the application again. Registry Cleanup

Ensure that you are running the WinDivert driver installation as an administrator: