Check if Reboot is Required on multiple server - using Powershell GUI based tool

Check if Reboot is Required on multiple server - using Powershell GUI based tool

This is a powershell script that will help you to find if a reboot is required on a server or a multiple server.

Note: This script will not reboot any of the server. It will just give you true/false value if the reboot is pending or not.

Lets Start:

Whenever you check for updates, after updating the patches it generates registry RebootRequired.
This information is stored at HKeyLocalMachine of the registry.

Below are several paths where you can find it --

To open registry --> press windows+R then type regedit hit enter..

"HKLM\Software\Microsoft\Windows\CurrentVersion\Component Based Servicing\"

"HKLM\SYSTEM\CurrentControlSet\Control\Session Manager"

"HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\RebootRequired "

Script 1:

function Test-PendingReboot

{

if (Get-ChildItem "HKLM:\Software\Microsoft\Windows\CurrentVersion\Component Based Servicing\RebootPending" -EA Ignore) { return $true }

if (Get-Item "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\RebootRequired" -EA Ignore) { return $true }

if (Get-ItemProperty "HKLM:\SYSTEM\CurrentControlSet\Control\Session Manager" -Name PendingFileRenameOperations -EA Ignore) { return $true }

try { 

$util = [wmiclass]"\\.\root\ccm\clientsdk:CCM_ClientUtilities"

$status = $util.DetermineIfRebootPending()

if(($status -ne $null) -and $status.RebootPending){

return $true

}

}catch{}



return $false

}

Script 2:

#specify text file path that contains list of server 

$d = get-content "path to your text file"
  $RebootRequired = " "
  $RebootNotRequired = " "
  $badservername = " "
  foreach ($t in $d)
  {
   try
   {
    $baseKey = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey("LocalMachine", $t)
    $key = $baseKey.OpenSubKey("Software\Microsoft\Windows\CurrentVersion\Component Based Servicing\")
    $subkeys = $key.GetSubKeyNames()
    $key.Close()
    $baseKey.Close()
    If ($subkeys | Where { $_ -eq "RebootPending" })
    {
     
     $RebootRequired = $RebootRequired + $t + "`r`n "
    }
    Else
    {
    
     $RebootNotRequired = $RebootNotRequired + $t + "`r`n"
    }
   }
   catch
   {
    $badservername = $badservername + $t + "`r`n"
    Write-Host "Non pinging servers are ignored. For other exceptions please contact Nishant" 
   }
   }
  $pathRebootRequired = "$([Environment]::GetFolderPath("Desktop"))\RebootRequired.txt";
  $pathRebootNotRequired = "$([Environment]::GetFolderPath("Desktop"))\RebootNotRequired.txt";
  $pathbadservername = "$([Environment]::GetFolderPath("Desktop"))\badservername.txt";
  "Reboot Required for below servers: `r`n$RebootRequired " | fl > $pathRebootRequired;

  notepad $pathRebootRequired;
  "Reboot NOT Required for below servers: `r`n$RebootNotRequired" | fl > $pathRebootNotRequired; 

  notepad $pathRebootNotRequired;
  "Below are list of bad servername, please try to check their ping response: `r`n$badservername" | fl > 

   $pathbadservername; 

  notepad $pathbadservername;
  
 }

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