Add Yahoo as a preferred source to see more of our stories on Google. If your Mac isn't working right, try force quitting programs. YouTube/Screenshot/Business Insider If you want force an app or ...

Not quite sure what you want here (what is suppr?), but to send a Ctrl-Alt-Del signal to remote server, right-click the VNC viewer app in your taskbar and one of the options is send ctrl-alt-del.

If you want force an app or program to quit on your Mac, you can use a similar keyboard shortcut to PC's Control+Alt+Delete. Force quitting a program will sacrifice any unsaved changes, so do it with ...