Plug the cable in. Open Device Manager (Windows). Look under “Other devices” or “Ports (COM & LPT)”. A yellow triangle indicates missing drivers. The hardware ID (right-click > Properties > Details > Hardware Ids) will show VID_067B (Prolific), VID_1A86 (WCH), or VID_10C4 (Silicon Labs).
Once you identify the chipset (usually visible in Windows Device Manager as "USB-Serial Controller" with a yellow exclamation mark), use these official sources: FTDI VCP Drivers Awm 20251 Console Cable Driver Download
Once the installation finishes, plug the USB end into your computer. Plug the cable in
Common bridge chips and where to get drivers Hardware Ids) will show VID_067B (Prolific)