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.
Clean, RestartRequired
Temporarily disable your real-time protection. If the software works afterward, you will need to add the folder containing your application (and the WinDivert.dll / WinDivert64.sys files) to your Antivirus Exclusion List . 5. Verify Digital Signature Requirements
: Modern antivirus or Windows features like Memory Integrity (Core Isolation) may block the driver from loading, leading to generic "cannot be installed" messages. Effective Solutions