Sorry to hear things are not working on your system. In order to help, though, we need much more information. Starting with, which version of MuseScore, what OS, and please give us precise steps to reproduce the problem. Starting with, how are you starting MuseScore - using the program icon on the desktop, by double-clicking a score, or some other method. And then the exact sequence of things you click that leads to the crash. If you have a particular score open when the crash occurs, please attach that as well.
Comments
Sorry to hear things are not working on your system. In order to help, though, we need much more information. Starting with, which version of MuseScore, what OS, and please give us precise steps to reproduce the problem. Starting with, how are you starting MuseScore - using the program icon on the desktop, by double-clicking a score, or some other method. And then the exact sequence of things you click that leads to the crash. If you have a particular score open when the crash occurs, please attach that as well.