The "WinDivert driver cannot be installed" error usually happens when a previous version of the driver is stuck in a half-uninstalled state or blocked by system security settings. While a simple restart is the first recommended step, it often doesn't clear the underlying service conflict or digital signature block. Troubleshooting the WinDivert Driver Error
If you're encountering the frustrating issue where the Windivert driver cannot be installed, and you're stuck with the message "You must restart your computer," you're not alone. This guide aims to walk you through understanding the issue and several steps to resolve it, ensuring you can successfully install the Windivert driver. The "WinDivert driver cannot be installed" error usually
Disable or uninstall conflicting filters (e.g., uninstall Npcap via Programs and Features, reboot, then install WinDivert). This guide aims to walk you through understanding
The full error message typically reads something like: You can manually install the latest signed version
Some third-party tools bundle outdated or broken versions of WinDivert. You can manually install the latest signed version from the official source.