Pclab installation problem

I am a new user of the oscilloscope. I have had the same problem of scalor during installation. Following your suggestion now I am able to start the software from my pc. In demo version no problem. In live mode this error occurres
open usb device by serial number invalid handle

I cannot do anything apart to shut down the application with task manager

Thank you for help and merry christmas

Giulio

The reason to the problem may be some sort of conflict with other USB devices connected to your PC.
Please see the following thread for some ideas to solve the problem:
[forum.vellemanprojects.eu/t/pcsu1000-open-usb-device-by-serial-number-invalid-handle/421/1)

As you see the problem may be difficult to solve.