Restarting your machine clears its memory and starts it up afresh, which can usually put its naughty behavior back on the straight and narrow. Restarting your Mac will close all running programs but thankfully still provides the opportunity to save any files you are currently working on. Once you have chosen to cancel or save any files you many have open, your computer will automatically reboot.
Important note: Restarting your Mac is not the same as turning on and off your machine, (which completely resets your computer). Restarting your Mac is a much faster way of rebooting, but if you find it did not successfully cure any problems you are experiencing, then your next port of call would be to fully tun off your machine, wait at least 60 seconds and then turn it on.
How to restart Mac – Step-by-step!
For those of you who like choice you are in luck, there are three methods you can pick from to restart your Mac….
Lightly press down on your power button (or press Control+Eject). A dialog box will pop up displaying buttons reading, Restart, Sleep, Cancel and Shutdown. Obviously go ahead and click on the Restart button.
Click on the little Apple icon situated on the far left of your tool bar. From the drop down menu click on the Restart option. Another popup box will appear providing you with the opportunity to cancel this request or to swiftly go ahead. If you do not pick either of the two options, you computer will still restart automatically in a few seconds.
Using your keyboard press the keys Control+Command+Eject (or Control+Command+Power button). If your Mac has frozen and you have lost the ability to use your mouse pad and cursor, this is the most reliable method to use, as it does not reply on the Mac OS X operating system.