Get Last Windows boot up time with Powershell

Question: How can I get the last Windows boot up time with Powershell? I need to be able to gather this information as part of post – patching process.

Answer: The Get_WmiObject cmdlet   will allow you to return the last boot up time for Windows.   

This is a sample code  that will return the LastBootUpTime on a specific server.

Get-WmiObject win32_operatingsystem | select csname, @{LABEL=’LastBootUpTime’
;EXPRESSION={$_.ConverttoDateTime($_.lastbootuptime)}}

You can extend this code to run on multiple servers. This may be in the situation of multiple reboots have occurred, and you want to iterate through the servers. There are a few ways of completing . Read through this post as an example and customise to your requirements Powershell - run script on all sql servers