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Powershell GWMI RPC help


We use the following code below supplied by Qlemo to search a list of PC's to see who is logged on using RPC and then output to a .csv

#Create Blade Output
gwmi -computer (gc c:\blades\blades.txt) Win32_ComputerSystem |
  select @{n='Blade'; e={$_.Name}},
             @{n='User'; e={ if ($_.UserName) { $_.Username } else { "No user" }} } |
 Export-CSV c:\blades\output.csv

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Evening works great until a PC in the list is switched off

When using the code via Task Scheduler we see that the output file is not being created when a PC has been switched off by a User.

Is there away to deal with the below issue by adding the "PC name" and "Switched off" to the output file but also clearing the message so that it continues to check all other PC's in the list.

gwmi : The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)
At C:\xampp\htdocs\blades\DE_Blades.ps1:71 char:1
+ gwmi -computer (gc c:\xampp\htdocs\blades\dk\dk_blades_list.txt) Win32_ComputerS ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [Get-WmiObject], COMException
    + FullyQualifiedErrorId : GetWMICOMException,Microsoft.PowerShell.Commands.GetWmiObjectCommand

Thank you in advance

Si Walton
Si Walton
1 Solution
Get-Content C:\blades\blades.txt | % {
	$Blade = $_
	Try {
		Get-WmiObject -Computer $Blade Win32_ComputerSystem -ErrorAction Stop | Select-Object -Property `
			@{n='Blade'; e={$Blade}},
			@{n='User'; e={If ($_.UserName) {$_.Username} Else {"No user"}}},
			@{n='Exception'; e={}}
	} Catch {
		$_.Exception | Select-Object -Property `
			@{n='Blade'; e={$Blade}},
			@{n='User'; e={"n/a"}},
			@{n='Exception'; e={$_.Message}}
} | Export-CSV c:\blades\output.csv

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Si WaltonAuthor Commented:
Thank you oBdA

Works as you said :)
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