How long a computer can work without turning it off?

It depends on the operating system and what the computer is doing. Documentation for many of the versions of the Microsoft operating systems suggest shutting down once a week. Unix based operating systems have been known to run continuously pretty much indefinitely or until the hardware fails.

First answer by Redbeard. Last edit by Redbeard. Contributor trust: 1942 [recommend contributor]. Question popularity: 1 [recommend question]