Hi,
I am sorry for the delay.
It is a PowerShell cmdlet. For more information, please try the below:
- Open PowerShell command window in Administrator privileges. For which, you need to elevate the context using 'Run As Administrator' option available when you right-click on the application icon.
- Run the command Get-Help Restart-Service to get information about restart-service cmdlet.
- For complete information, you can also try the same with 'Full' attribute as Get-Help Restart-Service -Full.
Thanks