: Many modern USB Ethernet adapters include a small amount of flash memory. When plugged in without existing drivers, the device may appear as a "Virtual CD-ROM" containing this file so you can install the driver without an internet connection.
Ethernet not working and weird file showing up. - Microsoft Q&A Run Rtk-nic-driver-installer.sfx.exe Download High Quality
Rare, but possible if a previous driver is locked by the system. Let it reboot; the installation will resume automatically. : Many modern USB Ethernet adapters include a
Before downloading or running anything labeled "High Quality" from third-party sites—which can often be a front for malware— - Microsoft Q&A Rare, but possible if a
The search result points to an unfamiliar IP-based URL ( 18.145.27.138 ). Downloading executable files (.exe) from unofficial, non-HTTPS, or IP-address-only sites carries a high risk of malware or ransomware infection .
If you have already downloaded the file, upload it to VirusTotal to scan it against dozens of antivirus engines before running it.