Acer G5450 Series manual Resetting the system, Perform Purpose To do this

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Resetting the system

Before going through in-depth troubleshooting, attempt first to reset the system using one of the methods below.

Perform	Purpose	To do this
Soft boot	To clear the system memory and reload	Press Ctrl+Alt+Del
reset	the operating system.

Cold boot	To clear the system memory, restart
reset	POST, and reload the operating system.
	This will halt power to all peripherals.

Press the system power button off and then on.