Windivert Driver Cannot Be Installed You Must Restart Your Computer Top Fix -
WinDivert installation requires to load a kernel driver. Even if your user account is an administrator, UAC (User Account Control) may block the driver silently.
Even if it says "Service not found," proceed to the next step.
For advanced users, manual installation through Command Prompt can be effective.
Modern 64-bit versions of Windows require all kernel-mode drivers to be digitally signed. Outdated versions of WinDivert may violate enforcing policies like Driver Signature Enforcement. Step-by-Step Solutions to Fix the Error WinDivert installation requires to load a kernel driver
Go to the official WinDivert GitHub or authorized repository. Download the latest stable release binary package. Extract the windivert.dll and windivert.sys files.
Windows 系统（尤其是较新版本的 Windows 10 和 Windows 11）强制要求所有内核驱动都必须具有有效的数字签名。如果您使用的 WinDivert 版本过低（签名已过期），或杀毒软件、防火墙误将其行为判定为恶意（特别是开启“内核隔离”或内存完整性功能时），系统会直接阻止驱动加载。
with: reg query "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\RebootRequired" → The key exists. Windows itself is waiting for a reboot. Step-by-Step Solutions to Fix the Error Go to
Sometimes Windows locks the actual .sys file in your temporary folders, preventing the software from overwriting it. Press Win + R to open the Run dialog box. Type %temp% and press .
The "You must restart your computer" error typically indicates that another process or system component is preventing the Windivert driver from installing because some system files or configurations are locked or in use. This often happens due to:
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By systematically working through this guide—from simple reboots and antivirus exclusions to disabling driver signature enforcement—you should be able to resolve the problem. Start with the least invasive solutions and move on to the more advanced ones only if necessary.
Are you using a specific program like or a custom script when this happens? WinDivert not working on Windows 10 20H2 #253 - GitHub
Locate the main executable file ( .exe ) of the program causing the error. Right-click the file and select . Navigate to the Compatibility tab.
If you've followed these steps and still encounter issues, consider:
