if you are currently updating your network drivers or if your Ethernet port is not working.
files can be used to hide malware, you should verify its legitimacy: Check the Source : It should only be downloaded from official sources like Realtek’s official site or your PC manufacturer’s support page. Verify Digital Signature : Right-click the file, go to Properties , and look for a Digital Signatures what is rtk-nic-driver-installer.sfx.exe