Opening Device Manager in Windows 8

Right click on Start, and left click on Device Manager.

In Device Manager look for a category named Ports (COM & LPT) and left click on it.

The category will expand showing the available COM ports.

The correct port usually says "USB Serial Port (COM X)"

Opening Device Manager in Windows 7

Left click on Start, then in the Search programs and files field type "Device Manager" and press Enter.

In Device Manager look for a category named Ports (COM & LPT) and left click on it.

The category will expand showing the available COM ports.

The correct port usually says "USB Serial Port (COM X)"

Opening Device Manager in Windows XP

Left click on Start, then right click on My Computer and left click on Properties.

The System Properties box will appear. Left click on the Hardware Tab and click Device Manager.

In Device Manager look for a category named Ports (COM & LPT) and left click on it.

The category will expand showing the available COM ports.

The correct port usually says "USB Serial Port (COM X)"