Powershell - Pending Reboot Status of Server

[support]

Quite often certain components of a server won't work due to having a pending reboot required from Windows patches.  This Powershell script below can help you determine if your server is in a  pending reboot state. Open Powershell ISE on your Passwordstate webserver and copy and paste the following code and check the results.

 

Kudos to the  https://thesysadminchannel.com website for the code:

 

Copy All Code below this line:

 

Function Get-PendingRebootStatus {

<#

.Synopsis

    This will check to see if a server or computer has a reboot pending.

    For updated help and examples refer to -Online version.

 

.NOTES

    Name: Get-PendingRebootStatus

    Author: theSysadminChannel

    Version: 1.0

    DateCreated: 2018-Jun-6

 

.LINK

https://thesysadminchannel.com/remotely-check-pending-reboot-status-powershell -

 

 

.PARAMETER ComputerName

    By default it will check the local computer.

 

.EXAMPLE

    Get-PendingRebootStatus -ComputerName PAC-DC01, PAC-WIN1001

 

    Description:

    Check the computers PAC-DC01 and PAC-WIN1001 if there are any pending reboots.

#>

 

    [CmdletBinding()]

    Param (

        [Parameter(

            Mandatory = $false,

            ValueFromPipeline=$true,

            ValueFromPipelineByPropertyName=$true,

            Position=0

        )]

 

    [string[]]  $ComputerName = $env:COMPUTERNAME

    )

 

 

    BEGIN {}

 

    PROCESS {

        Foreach ($Computer in $ComputerName) {

            Try {

                $PendingReboot = $false

 

                $HKLM = [UInt32] "0x80000002"

                $WMI_Reg = [WMIClass] "\\$Computer\root\default:StdRegProv"

 

                if ($WMI_Reg) {

                    if (($WMI_Reg.EnumKey($HKLM,"SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\")).sNames -contains 'RebootPending') {$PendingReboot = $true}

                    if (($WMI_Reg.EnumKey($HKLM,"SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\")).sNames -contains 'RebootRequired') {$PendingReboot = $true}

 

                    #Checking for SCCM namespace

                    $SCCM_Namespace = Get-WmiObject -Namespace ROOT\CCM\ClientSDK -List -ComputerName $Computer -ErrorAction Ignore

                    if ($SCCM_Namespace) {

                        if (([WmiClass]"\\$Computer\ROOT\CCM\ClientSDK:CCM_ClientUtilities").DetermineIfRebootPending().RebootPending -eq $true) {$PendingReboot = $true}

                    }

 

                    if ($PendingReboot -eq $true) {

                        [PSCustomObject]@{

                            ComputerName   = $Computer.ToUpper()

                            PendingReboot  = $true

                        }

                      } else {

                        [PSCustomObject]@{

                            ComputerName   = $Computer.ToUpper()

                            PendingReboot  = $false

                        }

                    }

                }

            } catch {

                Write-Error $_.Exception.Message

 

            } finally {

                #Clearing Variables

                $WMI_Reg        = $null

                $SCCM_Namespace = $null

            }

        }

    }

 

    END {}

}

Get-PendingRebootStatus -ComputerName $env:ComputerName