Windivert Driver Cannot Be Installed You Must Restart Your Computer Top Jun 2026

WinDivert: What is the reason behind the error message "error

On the tab, look at the bottom. If you see a message saying "This file came from another computer and might be blocked," check the Unblock box and click Apply. 5. Use the "Fresh Start" Sequence

In 90% of cases, this error is resolved by using the method to bypass Windows Fast Startup. If the error persists, use the Command Prompt commands ( sc delete windivert ) to manually purge the stuck driver from the system registry.

Run the application as . WinDivert requires administrative privileges to register its service; running as a standard user will trigger the "cannot be installed" error every time. Why does this happen?

Follow these troubleshooting steps in order to resolve the driver installation failure. Step 1: Run the Application as Administrator WinDivert: What is the reason behind the error

Sometimes Windows fails to delete the old WinDivert.sys or WinDivert64.sys files.

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.

Remove WinDivert service:

What (e.g., GoodbyeDPI, a specific VPN, or a custom tool) is triggering this error? Use the "Fresh Start" Sequence In 90% of

For advanced users, manual installation through Command Prompt can be effective.

The most common cause is a ghost service from a previous session. You can forcibly remove it via the Command Prompt: Open as an Administrator. Type sc stop windivert and press Enter. Type sc delete windivert and press Enter. Restart your computer to clear the system's driver state. 2. Run as Administrator

: Programs like ESET , Sophos , or other deep-packet inspection antiviruses often block WinDivert from loading as they see it as "suspicious" driver activity. Try disabling your antivirus temporarily to verify if it’s the culprit.

: Re-enable driver signature enforcement after installing the driver if you wish. " proceed to the next step.

The Windivert driver could not be installed automatically. Restarting Windows will allow the installer to finish adding the driver and register it properly with the system. After reboot:

The error message windivert driver cannot be installed you must restart your computer is technically accurate but often misleading. It implies that a simple restart will solve the problem, but for many users, the error persists even after they have restarted their computer multiple times.

Even if it says "Service not found," proceed to the next step.