How to check if any Windows Server is pending for reboot

How to check if any Windows server is pending for reboot (PowerShell)

Introduction

This PowerShell script will check if a server is pending for reboot and get the reboot status.

Scenarios

IT admins might log onto a server and wonder if there have been patches installed and anything needs to be rebooted. This is important to know because admins will not be able to install updates if the system is pending a reboot from a previous software update.

Script

Step1: Start the PowerShell Console with administrator. To run the script in the Windows PowerShell Console, type the command< Script Path> at the Windows PowerShell Console.

For example, type C:\Script\FindServerIsPendingReboot.ps1
The step is shown in the following figure.

When the script finishes running, it will display the results as shown below.

Here are some code snippets for your reference.

PowerShell

Edit|Remove

#Determine PendingFileRenameOperations exists of not 
$PendFileKeyPath = "HKLM:\SYSTEM\CurrentControlSet\Control\Session Manager\"
   
Invoke-Command -ComputerName $cn -ScriptBlock{
Get-ItemProperty -Path $using:PendFileKeyPath -name PendingFileRenameOperations} |`
Foreach{If($_.PendingFileRenameOperations){$PendingFile = $true}Else{$PendingFile = $false}}
 
#Determine RebootRequired subkey exists or not
$AutoUpdateKeyPath = "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update"
Invoke-Command -ComputerName $cn -ScriptBlock {Test-Path -Path "$using:AutoUpdateKeyPath\RebootRequired"} |`
Foreach{If($_ -eq $true){$AutoUpdate = $true}Else{$AutoUpdate = $false}}

#Determine PendingFileRenameOperations exists of not  
$PendFileKeyPath = "HKLM:\SYSTEM\CurrentControlSet\Control\Session Manager\" 
    
Invoke-Command -ComputerName $cn -ScriptBlock{ 
Get-ItemProperty -Path $using:PendFileKeyPath -name PendingFileRenameOperations} |` 
Foreach{If($_.PendingFileRenameOperations){$PendingFile = $true}Else{$PendingFile = $false}} 
  
#Determine RebootRequired subkey exists or not 
$AutoUpdateKeyPath = "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update" 
Invoke-Command -ComputerName $cn -ScriptBlock {Test-Path -Path "$using:AutoUpdateKeyPath\RebootRequired"} |` 
Foreach{If($_ -eq $true){$AutoUpdate = $true}Else{$AutoUpdate = $false}}

Prerequisite

Windows PowerShell 3.0
Windows 7 or later version

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