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Getting Computer Uptime Using PowerShell

Monitoring the Computer up-time is an important statistic in systems management.There are several ways we can retrieve a computer’s uptime using WMI (Windows Management Instrumentation) . PowerShell provides an easy way to accomplish this with the Get-WMIObject commandlet, In this post we will discuss how you can get both the last boot time as well as the current up time for a computer.

Step #1: The first step you need get the required WMI Object Class and its property for the last boot-up time. Finally assing the value to variable

$userSystem=Get-WmiObject win32_operatingsystem -ComputerName $ComputerName -ErrorAction SilentlyContinue

Step #2: The second step is to convert the property of LastBootUpTime to a Date and Time object. If you try $userSystem.LastBootUpTime commands then you will see that the output is not an user-friendly because the date and time expressed in the property is formatted as a CIM (Common Information Model) date time string. So its necessary to user conversion to see friendly format.

#Getting Last Boot time

Step #3: We you can determain and print the Last Boot Time

Write-Output (“Last boot: ” + $userSystem.ConvertToDateTime($userSystem.LastBootUpTime) )
Write-Output (“Uptime : ” + $sysuptime.Days + ” Days ” + $sysuptime.Hours + ” Hours ” + $sysuptime.Minutes + ” Minutes” )

Final Code


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