The main reason is that you are going the wrong way. You can delete the icon of the shortcut, then find the folder where you installed it, right-click the main program and send it to the desktop (that is, re-create the shortcut), and you can use it. The reason may be that you moved the original installation folder!

Also, Qian Qian really doesn't need to register in the registry, nor does it need to reinstall the software after reinstalling the system!