To resolve the "WinDivert driver cannot be installed" error without a full restart, you can manually force the removal of old service handles and registry entries that are blocking the new installation. 1. Force Stop and Delete the Service
Often, the driver is marked for deletion, but Windows is holding onto the service entry. You can force-delete it via the Command Prompt. To resolve the "WinDivert driver cannot be installed"
reg delete "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager" /v PendingFileRenameOperations /fshutdown /r /t 0 to restart.