Some computer brands like to reserve COMs 1, 2 and 3 for their own use. If no COM ports are used, a new install enumerates the next available port (normally COM3). To avoid conflict, you can change the port assignment manually.
1. Open Device manager
In the search field type "Device manager" and select it.
2. In Device Manager, click Ports (COM & LPT)
3. Open Properties
Right-click on the Pocket Neurobics Wireless Dongle entry and choose Properties
See it in action: