Uptime is a term that refers to how long a system has been up and running without shutdown or restart. High uptime we can usually deal when working with servers, as uptime is very important for servers than your own personal computer.
Uptime in Windows 8
In Windows 8 or Windows 8.1 same as Windows 10, we can find “Uptime” information displayed in the Task Manager.
Right-click the taskbar and select “Task Manager” or open Task Manager by pressing Ctrl+Shift+Escape. In the Task Manager click the Performance tab, then click on CPU and look under “Up time”.
On Windows Vista and Windows 7 you can find Uptime information also in the Task Manager under the Performance tab, check Up time under the System.