reboot

from The American Heritage® Dictionary of the English Language, 5th Edition.

• transitive verb To turn (a computer's operating system) off and then on again; restart.
• transitive verb To bring back (an earlier film or television show), usually with a new cast and updated script.
• noun The act or an instance of rebooting a computer's operating system.
• noun A film or television show that is a remake of an earlier production, typically with a different or refreshed viewpoint.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun computing An instance of rebooting.
• noun narratology The restarting of a series storyline that discards all previous continuity.
• verb computing To cause a computer to execute its boot process, effectively resetting the computer and causing the operating system to reload, especially after a system or power failure
• verb narratology To discard all previous continuity in a series and restart the series.
• verb video games To restart a (computer or video game) from the beginning.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb cause to load (an operating system) and start the initial processes