In the world of system administration, you will eventually have a need to check if a server needs a reboot or simply check pending reboot status. After some scouring on the internet I’ve come up with a Powershell script to let me know if a server needs a reboot. The best part about it, is that it can all be done remotely. No need to RDP into multiple servers or computers and do it manually. Also, it will tell you an easy True or False if it needs a reboot. Let’s move on to the script.
If you have any questions feel fee to leave a comment and I’ll do my best to get back to you!
Remotely Check Pending Reboot Status Powershell Script
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 {}
}
How to run the Get-PendingRebootStatus script
In order to the run the script there are a couple of things you need to do. First and foremost, you need to set your execution policy to RemoteSigned. This is a standard with running any Powershell script.
Next you need to dot source the script since it is a function. To dot source the script do the following:
- Copy the script above and save it any location. In this example I’ll save it to my C:\_Scripts folder.
- Within the Powershell Window type: . .\_Scripts\Get-PendingRebootStatus.ps1 – Note the two dots before the backslash.
Hopefully this article has helped you check pending Reboot status for machines in your environment. Let me know what you think. Also, consider subscribing to our Youtube Channel to get video demos and other related sysadmin content. While you’re at it, don’t forget to take a look at our other real world Powershell Scripts.
