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

The error message explicitly says "you must restart your computer" —but often, restarting once is not enough. You need to clear the lock.

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 The error message explicitly says "you must restart

If you're running Windows 10 or Windows 11, you might need to disable Driver Signature Enforcement to install unsigned drivers like WinDivert. To do this: While a simple restart is the first recommended

Click and toggle Memory integrity to Off . Restart and try the installation again. 4. The "Missing File" Quick Fix Restart and try the installation again

Ensure that you're running the WinDivert driver installer with administrative privileges. To do this:

—not a shutdown, a full restart.