Win10, lenovo blade 9000, two days before the updated system, the window is minimized in the task bar after now I can't find it (only by ALT + TAB to switch program), the original several programs shortcut in the task bar, according to the way of the Internet, execute a command, restart Windows explorer, normally for five seconds, went back to the same, ask the lenovo customer service, said let me to create an account and recreate the account entered is normal, after but I still want to use the original account, after all, don't want to reshipment many software, method of crack to have excuse me?