Thanks for the reply.

Questions: it is only for window, correct?

My laptop computer is old. Once I download it, will it slow down my laptop? If I change to a new laptop in the future, can I still download your software?

Hello!

Thank you for getting back to us. The application works only on Windows computers, If your laptop is quite old, it might be possible that the app will process the data slower. However, it should not slow down the other application or the operating system in any way. Please download the app and give it a try. It comes with a 15 days fully-featured trial.

http://screentovideo.com/download/

Please note that you can install it on as many devices as you wish.