This specific file is a self-extracting archive ( .sfx ) that, when run, extracts and executes the Realtek Ethernet Controller driver .
: If the virtual CD-ROM drive remains visible after installation and you want it gone, right-click the drive in File Explorer and select Troubleshooting rtk-nic-driver-installer.sfx.exe windows 10 download
In the world of Windows troubleshooting, few things are as frustrating as a missing Network Interface Card (NIC) driver. Without network drivers, a computer is cut off from the world—unable to browse the web, stream music, or download necessary updates. If you have stumbled across the file name while trying to fix a Windows 10 connectivity issue, you are likely dealing with a Realtek Ethernet controller. This specific file is a self-extracting archive (