Minimize all windows.
Windows logo +M
Restore minimized windows to the desktop.
Windows logo +Shift+M
Lock your computer or switch users.
Windows logo +L
Switch to Mail.
CTRL+1
Switch to Calendar.
CTRL+2
Switch between windows
CTRL+Tab
Create an appointment.
CTRL+SHIFT+A
Create a message.
CTRL+SHIFT+M
Check spelling.
F7
Reply to a message.
CTRL+R