A script to remove a specific installed patch in a domain.

I have approved a patch with some conflict ions with Office 2010 modules, the KB number is 3097877. I have researched online and combined a script like below. However, when I ran this script with a complied computer name list file, it gave me errors like below. Please help me modify this script to make it possible.

Thanks.

Script

function Uninstall-Hotfix {
[cmdletbinding()]
param(
$computername = $env:computername,
[string] $HotfixID
)            

$hotfixes = Get-WmiObject -ComputerName $computername -Class Win32_QuickFixEngineering | select hotfixid            

if($hotfixes -match $hotfixID) {
    $hotfixID = $HotfixID.Replace("KB","")
    Write-host "Found the hotfix KB" + $HotfixID
    Write-Host "Uninstalling the hotfix"
    $UninstallString = "cmd.exe /c wusa.exe /uninstall /KB:$hotfixID /quiet /norestart"
    ([WMICLASS]"\\$computername\ROOT\CIMV2:win32_process").Create($UninstallString) | out-null            

    while (@(Get-Process wusa -computername $computername -ErrorAction SilentlyContinue).Count -ne 0) {
        Start-Sleep 3
        Write-Host "Waiting for update removal to finish ..."
    }
write-host "Completed the uninstallation of $hotfixID"
}
else {            

write-host "Given hotfix($hotfixID) not found"
return
}            

}



$myComputers = Get-Content "c:\PowerShell Scripts\computers_needremove.txt"
foreach ($computer in $myComputers) {
 Uninstall-HotFix -ComputerName $computer -HotfixID KB3097877
}

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Error i got when running the above script:


function Uninstall-Hotfix {
[cmdletbinding()]
param(
$computername = $env:computername,
[string] $HotfixID
)            

$hotfixes = Get-WmiObject -ComputerName $computername -Class Win32_QuickFixEngineering | select hotfixid            

if($hotfixes -match $hotfixID) {
    $hotfixID = $HotfixID.Replace("KB","")
    Write-host "Found the hotfix KB" + $HotfixID
    Write-Host "Uninstalling the hotfix"
    $UninstallString = "cmd.exe /c wusa.exe /uninstall /KB:$hotfixID /quiet /norestart"
    ([WMICLASS]"\\$computername\ROOT\CIMV2:win32_process").Create($UninstallString) | out-null            

    while (@(Get-Process wusa -computername $computername -ErrorAction SilentlyContinue).Count -ne 0) {
        Start-Sleep 3
        Write-Host "Waiting for update removal to finish ..."
    }
write-host "Completed the uninstallation of $hotfixID"
}
else {            

write-host "Given hotfix($hotfixID) not found"
return
}            

}



$myComputers = Get-Content "c:\PowerShell Scripts\computers_needremove.txt"
foreach ($computer in $myComputers) {
 Uninstall-HotFix -ComputerName $computer -HotfixID KB3097877
}