The driver file is unsigned or uses an older signature algorithm (SHA-1 vs SHA-256). Fix: Temporarily disable driver signature enforcement:
Technical Report: RTK-NIC-DRIVER-INSTALLER.sfx.exe Analysis rtk-nic-driver-installer.sfx.exe (often appearing as RTK_NIC_DRIVER_INSTALLER.sfx.exe rtk-nic-driver-installer.sfx.exe windows 11
October 2024. Always check Realtek’s official site for the most recent package (look for version numbers above 10.060 for full Windows 11 24H2 support). The driver file is unsigned or uses an
Verify installation by opening ( Win + X → Device Manager ), expanding Network adapters . Look for “Realtek PCIe GbE Family Controller” (or 2.5G/5G variant). Right-click → Properties → Driver tab. The driver date and version should match the package you installed (e.g., 1168.19.1204.2023 or newer). 1168.19.1204.2023 or newer).