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Generally, a hard reset is initiated by pressing a dedicated reset button On some systems (e.g, the PlayStation 2 video game console), pressing and releasing the power button initiates a hard reset, and holding the button turns the system off.
This is an accepted version of this page This is the latest accepted revision, reviewed on 2 December 2024. Restoring the software of an electronic device to its original state For the Tilian Pearson album, see Factory Reset (album). A factory reset, also known as hard reset or master reset, is a software restore of an electronic device to its original system state by erasing all data ...
Restarting a computer also is called rebooting, which can be "hard", e.g. after electrical power to the CPU is switched from off to on, or "soft", where the power is not cut. On some systems, a soft boot may optionally clear RAM to zero. Both hard and soft booting can be initiated by hardware such as a button press or by a software command.
A power-on self-test (POST) is a process performed by firmware or software routines immediately after a computer or other digital electronic device is powered on. [ 1 ] POST processes may set the initial state of the device from firmware and detect if any hardware components are non-functional.
This approach surpasses the schedule-based features used in other programs because it only runs the fixes that are needed and only runs when your computer is idle. ActiveCare proactively ensures your PC is always ready for action, while eliminating the hassle of setting schedules or being interrupted by annoying system maintenance routines.
Reset ("cold restart") button in a hole (needed a thin metal tool to press) Instant power off button in a hole (needed a thin metal tool to press) Integrated charger or power adapter inside the laptop; Dedicated Media buttons (Internet, Volume, Play, Pause, Next, Previous) Floppy disk drive; Serial port; Parallel port; Modem; IEEE 1394 port ...
If the system has just been powered up or the reset button was pressed ("cold boot"), the full power-on self-test (POST) is run. If Ctrl+Alt+Delete was pressed ("warm boot"), a special flag value stored in nonvolatile BIOS memory ("CMOS") tested by the BIOS allows bypass of the lengthy POST and memory detection.
To reset, users can hold down the Command, Control and Power keys. For a programmer's button click, users can hold down the Command and Power keys. [ 25 ] There are some hard crash situations where even this is not enough to restore the system, in which case the power switch is the only recourse.