Microsoft Management Console (MMC) main window keyboard shortcuts

Ctrl+O (Open a saved console)
Ctrl+N (Open a new console)
Ctrl+S (Save the open console)
Ctrl+M (Add or remove a console item)
Ctrl+W (Open a new window)
F5 key (Update the content of all console windows)
Alt+Spacebar (Display the MMC window menu)
Alt+F4 (Close the console)
Alt+A (Display the Action menu)
Alt+V (Display the View menu)
Alt+F (Display the File menu)
Alt+O (Display the Favorites menu)