How to See System Uptime in Vista and Windows 7
The system up time will show you how much time your system has been running since the last time the computer had been shutdown or restarted.
It can be fun to see who has the longest up time.
This can be handy in order to know if and when the system has recovered from a possible power failure or any other issue it might have had.
See System "Up Time" Using Task Manager
Open the Task Manager.
NOTE: Right click on the taskbar and click Task Manager, or press Ctrl + Shift + Esc keys.
Click on the Performance
tab. (see screenshot below)
The current system Up Time
is shown under System
See System "Up Time" Using a Command Prompt
Open the Start Menu, then copy and paste the command below in the search box and press Enter.
cmd /k systeminfo | find "System Boot Time"2.
You will now see the system uptime information. (See screenshot below)
NOTE: It may take a few seconds to display.