This error usually happens when a previous version of the WinDivert driver is still active or registered in a way that prevents a new installation
if (key != null) return SystemState.RestartRequired;
Fixing the "WinDivert driver cannot be installed" Error Without a Restart This error usually happens when a previous version
Before fixing the error, it is crucial to understand what WinDivert is. is an open-source, kernel-level driver for Windows. It allows user-mode applications to capture, modify, and redirect network packets traveling through the Windows network stack.
Caution: Forcibly deleting pending rename entries can cause system instability if legitimate pending operations exist (e.g., from Windows Update). Validate the registry value’s contents first. Caution: Forcibly deleting pending rename entries can cause
The WinDivert driver installation loop is rarely a hardware fault or a permanent operating system corruption. By terminating conflicting handles, forcing a service deletion via sc delete , and ensuring your application runs with full administrative rights, you can successfully bypass the prompt and restore your network utility tools to normal operation. Share public link
Windows Memory Integrity (Core Isolation) or antivirus software (e.g., Sophos) may block the driver due to signature or security policies. By terminating conflicting handles
WinDivert requires specific files to be in the same folder as the application trying to use it. Ensure these files are present in your program's directory: WinDivert.dll
If a simple restart doesn't work, follow these steps to manually clear the driver: