Windivert Driver Cannot Be Installed You Must Restart Your Computer Guide
If none of the above steps work, perform a Clean Boot of Windows. This prevents third-party software (other than Microsoft services) from loading.
The "WinDivert driver cannot be installed. You must restart your computer" error is a classic example of Windows’ overly cautious driver management. While frustrating, it is rarely a sign of a broken PC or malware.
In 90% of cases, the solution is a combination of:
If you have followed the steps above—cleaning pending operations, manually removing old drivers, and performing a clean boot—you should be able to install your software without further issues. And remember: whenever you see a message that says "you must restart your computer," treat it not as a suggestion but as a prerequisite. Restart first, troubleshoot second.
Need further help? Check the official GitHub page for WinDivert or the support forum of the specific application you are trying to install (SocksEscort, ExitLag, NoPing, etc.). They often have version-specific hotfixes.
The error message "WinDivert driver cannot be installed, you must restart your computer"
typically occurs when a previous version of the driver is still stuck in the system's memory or the service registry is corrupted Quick Fixes Manual Cleanup via Command Prompt
: Forcing the removal of the old service often resolves the "restart required" loop Stack Overflow Command Prompt Administrator Run the following commands one by one: sc stop WinDivert sc stop WinDivert1.4 depending on your version) sc delete WinDivert
Restart your computer and try launching your application again Use windivertctl : If the application includes it, run windivertctl.exe uninstall from an elevated command prompt to clear the driver state Check Antivirus/Security Blocks : Some antivirus programs, like , are known to be incompatible with WinDivert
Create an exclusion for your application's folder in your antivirus settings Memory Integrity Windows Security
(under Device Security > Core Isolation) if the driver is being blocked from loading Microsoft Support Common Causes to Check Driver Signature Enforcement
: Modern Windows versions may block WinDivert if it isn't properly signed. You can temporarily Disable Driver Signature Enforcement through Advanced Startup to test if this is the cause Administrator Privileges : Ensure the application using WinDivert is set to Run as Administrator If none of the above steps work, perform
; without this, it cannot install the temporary driver service Conflicting Software : Apps like Killer Network Control Center
use similar techniques and can prevent WinDivert from installing Are you seeing a specific error code (like 5 or 577) alongside this message?
The error "WinDivert driver cannot be installed you must restart your computer" typically occurs when a previous version of the driver is stuck in memory, the service registry entry is corrupted, or security settings are blocking the driver from loading. Summary of Causes
Active/Corrupt Service: An old or "stuck" WinDivert service is still registered, often pointing to a file path that no longer exists.
Security Restrictions: Windows Memory Integrity (Core Isolation) or antivirus software (e.g., Sophos) may block the driver due to signature or security policies.
Architecture Mismatch: Attempting to load a 32-bit driver on a 64-bit system, or missing the .sys file in the application directory.
Missing Signatures: Older Windows versions (like Windows 7 or unpatched 2008 R2) may reject drivers signed with SHA256 if they lack specific updates. Recommended Solutions
Manual Service Removal: Open Command Prompt as Administrator and run these commands to clear existing service instances: sc stop windivert sc delete windivert Use code with caution. Copied to clipboard
Clean the Registry: If the error persists after a reboot, manually delete the registry key:
Navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WinDivert Delete the WinDivert folder and restart.
Disable Memory Integrity: In Windows 10 or 11, go to Windows Security > Device Security > Core Isolation and turn off Memory Integrity, then restart. If you have followed the steps above—cleaning pending
Verify File Integrity: Ensure WinDivert.dll, WinDivert.sys, and WinDivert.inf are all in the same folder as your application. On 64-bit systems, you often need both WinDivert32.sys and WinDivert64.sys available.
Use Compatibility Versions: If using version 2.2.0 fails on specific Windows builds (like 20H2), try reverting to version 1.4.3, which is reported to be more stable in some environments.
For more technical details, you can refer to the official WinDivert Documentation or the ReQrypt WinDivert FAQ. WinDivert not working on Windows 10 20H2 #253 - GitHub
If you're seeing the error "WinDivert driver cannot be installed, you must restart your computer," it usually means an old version of the driver is stuck in memory or a service conflict is preventing the new one from loading.
Here is a troubleshooting guide you can use for a post or to fix the issue yourself. Quick Fixes
Run as Administrator: Ensure the application using WinDivert (like GoodbyeDPI or a VPN) is launched with Administrator privileges.
The "Double Restart": Sometimes Windows holds onto driver handles even after one reboot. Try a second full restart to clear the system cache. Advanced Troubleshooting
If a simple restart doesn't work, follow these steps to manually clear the driver:
1. Force-Delete the ServiceAn old service entry might be pointing to a file that no longer exists. Open Command Prompt as Administrator.
Type the following commands one by one, pressing Enter after each: sc stop windivert sc delete windivert Restart your computer and try running the app again.
2. Clean the RegistryIf the service persists, you may need to manually remove its registry key. Press Win + R, type regedit, and hit Enter. “WinDivert driver cannot be installed
Navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WinDivert. Right-click the WinDivert folder and select Delete. Restart your computer immediately.
3. Check for Security Software BlocksSome Antivirus programs (like Sophos) block WinDivert because it intercepts network packets. Try temporarily disabling your antivirus or adding the application folder to your Exclusions list.
4. Verify File PlacementEnsure all required files are in the same folder as your application: WinDivert.dll
WinDivert64.sys (for 64-bit systems) or WinDivert32.sys (for 32-bit systems) WinDivert.inf Why does this happen? WinDivert not working on Windows 10 20H2 #253 - GitHub
Based on your request, it seems you are encountering a persistent WinDivert error where the driver installation fails, and the system demands a restart (often caused by a "System Restart Pending" state in Windows).
Below is a feature design for a "Smart Driver Installer" module. This feature is designed to be integrated into applications using WinDivert (like network blockers, sniffers, or firewalls) to handle this specific error gracefully without crashing or confusing the user.
While modern versions of WinDivert are signed, sometimes Windows Security gets overly aggressive regarding the installation date or certificate validity.
If you’ve ever tried using network tools like Proxifier, Windscribe, NetBalancer, or certain VPNs/packet analyzers, you might have run into a frustrating popup:
“WinDivert driver cannot be installed. You must restart your computer.”
You restart, try again, and… the same message appears. Don’t worry. This is a common Windows driver permission or conflict issue, and it’s usually fixable in under 10 minutes.
Let’s break down why this happens and exactly how to solve it.
The WinDivert driver may already be running because another application (for example, a VPN client running in your system tray) is using it. You cannot install a new driver over an active one. The installer detects the driver is already loaded and refuses to proceed.