You need the Realtek USB driver. Since Realtek's official site is difficult to navigate, it is often easier to use a trusted driver archive or a driver utility.
Getting the to work on a Windows PC can be tricky because it was designed specifically for LG Smart TVs (2014 models). However, because it uses a standard Broadcom BCM43242 chipset, it is possible to use it on Windows with the right workaround. The "Workaround" Driver for Windows 10/11 Lg An-wf500 Windows Driver
Mr. Park’s hands shook as he navigated. One folder was labeled simply: “인출” — “Withdrawal.” You need the Realtek USB driver
LG does not officially provide Windows drivers for this dongle on their Support Portal because it was never intended for PC use. However, because it uses the chipset, you can often find compatible drivers through third-party repositories: LG AN-WF500 Wi-Fi and Bluetooth Dongle - B&H Photo However, because it uses a standard Broadcom BCM43242
Understanding the hardware is key to finding the right driver. The AN-WF500 uses a chipset. Interface: USB 2.0