Powershell To update Services Password, Sharepoint Managed Acount Password and IIS AppPool Password

Many a times there is a need to update the changed password in Virtual Machines. It can be done manually. But doing it via Powershell will save us a lot of time.

Background

After browsing for a while, I couldn't find an article that pointed me in doing all the above using one script. So I thought to share the powershell comands that I just put together, which can be optimized/refactored by admins to use them in prod environment.

Using the code

//
// Save the below powershell code as ps1 and run in Powershell
// Update Domain, UserName and Password with your actual values
//

$localaccount = "domain\username"
$newpassword = "************"

#Set Execution Policy
Set-ExecutionPolicy -ExecutionPolicy Unrestricted -force

#Import SharePoint Module
Add-PSSnapin Microsoft.SharePoint.PowerShell -EA silentlycontinue

#Update Service Account
Write-Host "Updating Password for Services" -foregroundcolor green
$services = Get-WmiObject win32_Service | where { $_.startname -eq $localaccount}

foreach ($service in $services)
{  
    #Update Password
    Write-Host "Updating Password." -foregroundcolor 13
    $status = $service.Change($null,$null,$null,$null,$null,$null, $localaccount, $newpassword)
    Write-Host "Status:  " $status.ReturnValue -foregroundcolor 13 
    
}

#Stop Service
Write-Host "Stop all running Services." -foregroundcolor green
Get-WmiObject win32_Service | where { ($_.startname -eq $localaccount -And $_.state -ne "Stopped" -And  $_.startmode -ne "Disabled") } | stop-service -force

#Start Service
Write-Host "Restarting stopped Services" -foregroundcolor green
Get-WmiObject win32_Service | where { ($_.startname -eq $localaccount -And $_.state -ne "Running" -And  $_.startmode -ne "Disabled") } | start-service

#Update Sharepoint Managed Account
$ManagedAccount = Get-SPManagedAccount -Identity $localaccount
$securePassword = ConvertTo-SecureString -String $newpassword -AsPlainText -Force

Write-Host "Please wait while Passwod for SharePoint Managed Account gets updated." -foregroundcolor red

Set-SPManagedAccount -Identity $ManagedAccount -ExistingPassword $securePassword -Confirm:$false

Write-Host "Password for SahrePoint Updated Successfully" -foregroundcolor green

#Update App Pool Accounts
Import-Module WebAdministration

#Restart IIS
Write-Host "Restarting IIS. " -foregroundcolor green
iisreset /noforce

$appPools = Get-ChildItem IIS:\appPools  | where {$_.state -ne "Started"}

foreach ($appPool in $appPools) 
{    
    if ($appPool.processModel.userName -eq $localaccount)
    {
        $appPoolName = $appPool.Name
        $appPool.processModel.password =  $newpassword 
        $appPool | Set-Item
 $appPool.Recycle()
        Write-Host "Password for AppPool " $appPoolName " updated successfully"  -foregroundcolor green
    }
}

#Restart IIS
Write-Host "Restarting IIS after password reset. " -foregroundcolor green
iisreset /noforce


Write-Host "IIS Restarted Successfully. " -foregroundcolor green