If you are seeing the error on Windows 11, it typically indicates a conflict or corruption with your Realtek Network Interface Controller (NIC) driver installer. This executable is often part of a self-extracting archive (SFX) used to update Ethernet or LAN drivers.
: Avoid using generic driver installers from third-party sites. Download the latest "Auto Installation Program" specifically for Windows 11 directly from the Realtek Download Center Unblock the Installer rtknicdriverinstallersfxexe windows 11 fixed