A Reboot may refer to any of the following:
1. A reboot is restarting a working computer using hardware (e.g., a power button) instead of software. Rebooting is sometimes necessary after installing a software program, installing operating system updates, to recover from an error, or re-initialize drivers or hardware devices.
How to do a hard reboot
To perform a hard reboot or cold reboot, press and hold down the power button on the computer. After 5-10 seconds, the computer should turn off. Once the computer is off, wait a few seconds and then turn the computer back on.
What should happen when I reboot?
When you reboot a computer, all open programs should close. Then, the computer should turn off briefly and then turn back on.
Why should I reboot?
Rebooting a computer helps resolve many issues such as Internet connectivity problems, slow browser response, and software issues. Essentially, it "starts over" any code working improperly.
Hard reboot vs. soft reboot
A reboot may be a cold reboot or hard reboot, which means the power was physically shut off and then turned back on. It can also be a warm reboot or soft reboot, which means the system restarted without loss of power.
Users should only perform a hard reboot if the computer is completely frozen, as it may damage hardware components.
What key combination allows me to restart?
These keys are the closest thing to a keyboard shortcut key to rebooting the keyboard. However, in Windows, you can create a batch file that reboots the computer and then create a shortcut to run that batch file. For help with creating a batch file to reboot the computer, see: How to shut down or restart the computer with a batch file.
Reboot vs. restart
The term restart refers to an operating system closing all programs before a soft reboot. The image shows the "Turn off computer" prompt in Windows XP, with the previously mentioned Restart option.
Erasing the computer and restarting over
Some may refer to a reboot or restart as erasing the computer and starting over. For information about erasing the computer and starting over, see the following document.
2. Linux users see the reboot command for further information about rebooting a Linux computer from the command line.