After installation, go to Device Manager and expand the Ports (COM & LPT) section. You should see an entry like "USB Serial Port (COMx)," where "x" is a number assigned by Windows. This confirms your system has created a virtual COM port, and the adapter is ready for use. You can also test communication with a simple serial terminal program like PuTTY or Tera Term, connecting at a known baud rate to see if data can be exchanged.
For optimal system stability and security, users should identify the specific chipset (Prolific, FTDI, or WCH) using tools like Windows Device Manager or visual inspection of the PCB, and download the corresponding driver directly from the chipset manufacturer or via Windows Update. Relying on random third-party files labeled "Z-tek" increases the risk of system instability and malware infection. Z-tek Usb To Serial Comm Port Driver Free Download
To ensure the virtual COM port has been successfully mapped: Open again. Scroll down and expand the Ports (COM & LPT) section. After installation, go to Device Manager and expand
Once installation finishes, you must find the specific COM port number assigned to your device. Your serial software applications will ask for this number. You can also test communication with a simple
Plug your Z-tek adapter into an available USB port. It is best to use a USB 2.0 port if available, as some older serial adapters encounter synchronization issues on USB 3.0 ports. Windows will now detect the hardware and link it to the newly installed driver. How to Verify Your Installation in Windows