Computer uptime is an important statistic in systems management. Here are several of the ways we can determine system uptime for a computer (note that this list is by no means exhaustive):
1. The Task Manager’s Performance tab displays the computer uptime as days, hours, minutes and seconds.
2. The Systeminfo command-line tool displays the computer’s last boot time.
3. The most recent event ID 6005 in the computer’s System event log records the computer’s last boot time.