The CT-WN4320Z was originally designed for older versions of Windows, but it can still work on modern systems with the right approach.
You may need to download legacy drivers (e.g., from Driver Scape ) and use the Device Manager to point Windows toward the .inf file. Driver Wlan Usb 2.0 Ct-wn4320z
Understanding the hardware is the first step to finding the correct driver: USB 2.0 (High Speed). Standards: IEEE 802.11b/g. The CT-WN4320Z was originally designed for older versions