Hey everyone, Who remembers systeminfo? I liked to use systeminfo | more on my Windows XP and Win 7 systems to get the boot datetime, but Microsoft appears to have stripped the property in Windows 8 and Windows Server 2012. At any rate, it’s not what I want. :slight_smile: What would you say is th…

If you mean aggregate uptime, probably nothing easy. If you mean current uptime since last reboot, it’s query Win32_OperatingSystem using CIM, get the last boot time, and calculate (it’s simple subtraction).

Hi Tim, Try this: (see the attached file for script code - some characters are mis-displayed here…) function Uptime { $OS = Get-WmiObject -class win32_operatingsystem $Uptime = (get-date) - ($os.ConvertToDateTime($os.lastbootuptime)) $Display = "Uptime: " + $Uptime.Days + " days, " + $…

Windows 8 will throw you all off, though. By default, when you “Shut down” a Windows 8 computer, you’re actually going into a sleep / hibernate state, and waking up from that doesn’t reset the WMI LastBootUpTime value (but a reboot does; go figure.) You can figure out the last “boot” time on Windo…

Sam, thanks a lot for that code. I’ve attached a copy of my tricked-out profile script; it may be useful to somebody! -Tim

Just returning the favor Tim, I recognized you right away. I took your 70-412 video course back in March of this year on CBT Nuggets when I was preparing for my MCSA 2012. It was most helpful… Dave, thanks for pointing that out! I, for one, did not know about this default behavior in Win8

Thanks for your kind words, Sam. I’m glad the 412 training was helpful to you. Like Don and Jeff Hicks, I’m training for Pluralsight now, FYI. -Tim

different ways to get computer uptime [url] http://gallery.technet.microsoft.com/scriptcenter/Powershell-Script-to-show-85a7a4c9[/url] :slight_smile:

New-TimeSpan -Seconds (Get-WmiObject Win32_PerfFormattedData_PerfOS_System).SystemUptime | Format-Table Days,Hours,Minutes

I’m having a great “time” with this! Thanks guys. -Tim

([datetime]::Now - (New-TimeSpan -Seconds (Get-WmiObject Win32_PerfFormattedData_PerfOS_System).SystemUptime)) Displays the date and time of day the computer was started

Most Efficient Way to Present System Uptime?

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Most Efficient Way to Present System Uptime?

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