: Open a Command Prompt as Administrator and run these commands to clear out the old driver service: sc stop WinDivert sc delete WinDivert
Go to the official WinDivert GitHub repository or trusted release page. Download the latest stable binary package.
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.
Ensure all required driver files are present in the application's root folder. Missing files often trigger generic "installation failed" errors. : Open a Command Prompt as Administrator and
Hold the while clicking Restart in your Windows Start Menu.
WinDivert needs to install a service ( WinDivert1.0 ) to manage network traffic. If you are not running your application (e.g., a gaming accelerator or networking tool) as an Administrator, it will fail.
If it says [SC] DeleteService SUCCESS , the conflict is resolved. This guide aims to walk you through understanding
sc delete WinDivert1.4
Before diving into solutions, it's important to understand what you're dealing with. is a legitimate Windows driver that allows applications to capture, modify, and block network packets entirely from user-mode. It's a powerful tool used in firewalls, VPNs, and traffic analysis applications.
If you have used a similar program before (e.g., switching from one ad-blocker to another), the old driver might still be "installed" but inactive. Hold the while clicking Restart in your Windows Start Menu
Troubleshooting "WinDivert driver cannot be installed. You must restart your computer" Error
Press the , type cmd , right-click on Command Prompt , and select Run as administrator .
When a low-level driver says "cannot install, you must restart," it’s rarely a bug. It’s Windows protecting kernel integrity. Trying to bypass it with hacks (like forcing driver loads) can cause blue screens. The fastest path forward is the simplest one: restart, then retry.
Press Windows Key + S , type , right-click Command Prompt , and select Run as Administrator .