Windivert — Driver Cannot Be Installed You Must Restart Your Computer Top

This error typically occurs when the driver—a common component used by network tools like VPNs, proxies, or packet sniffers—is already present but stuck in a corrupted or "pending" state Quick Fix Steps Force Stop the Driver Command Prompt

Fixed: "WinDivert Driver Cannot Be Installed – You Must Restart Your Computer" (Top Solutions)

If you are reading this, you have likely been stopped mid-task by a frustrating pop-up error: This error typically occurs when the driver—a common

• Action: Go to Start > Power > Restart.
• Verification: After restarting, attempt to install the Windivert driver again.

2. Check for "Ghost" Drivers

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. Action : Go to Start > Power > Restart

Her colleague, Tom, had installed a beta VPN tool earlier that week and uninstalled it improperly. That left a stale driver reference in the registry—Windows knows the old driver exists but can’t overwrite it without a reboot. switching from one ad-blocker to another)

Check Registry Entries: If the service commands fail, manually delete the WinDivert registry key:

Solutions

1. The "Real" Restart (Do not skip)

While it sounds obvious, many users attempt to restart but encounter "Fast Startup" issues in Windows 8, 10, and 11, which do not fully clear the kernel memory.

sc delete WinDivert1.4