Windows Server 2008, Windows 7 and Windows 8 and above
Run the following from a command prompt:
systeminfo | find "Time:"
or
systeminfo | find /i "Boot Time"
The output will look something like this:
System Boot Time: 5/15/2015, 9:34:53 AM
- or -
Go to Event Viewer
> Windows Logs
> System
> Filter Current Log
> Write 6005, 6006 In Event Sources
> OK
- or -
Start Task Manager by right-clicking the Taskbar, click the Performance tab
and note the value for Uptime near the lower-right of the screen.
Image Reference
Run the following from a command prompt:
systeminfo | find "Time:"
or
systeminfo | find /i "Boot Time"
The output will look something like this:
System Boot Time: 5/15/2015, 9:34:53 AM
- or -
Go to Event Viewer
> Windows Logs
> System
> Filter Current Log
> Write 6005, 6006 In Event Sources
> OK
- or -
Start Task Manager by right-clicking the Taskbar, click the Performance tab
and note the value for Uptime near the lower-right of the screen.
Image Reference