PowerShell/docs/check-pending-reboot.md
2023-10-31 11:05:01 +01:00

96 lines
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Markdown

*check-pending-reboot.ps1*
================
check-pending-reboot.ps1
Parameters
----------
```powershell
[<CommonParameters>]
This script supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, WarningAction,
WarningVariable, OutBuffer, PipelineVariable, and OutVariable.
```
Script Content
--------------
```powershell
<#
.SYNOPSIS
Check for pending reboots
.DESCRIPTION
This PowerShell script queries pending operating system reboots and prints it.
.EXAMPLE
./check-pending-reboot.ps1
✅ No pending reboot
.LINK
https://github.com/fleschutz/PowerShell
.NOTES
Author: Markus Fleschutz | License: CC0
#>
function Test-RegistryValue { param([parameter(Mandatory=$true)][ValidateNotNullOrEmpty()]$Path, [parameter(Mandatory=$true)] [ValidateNotNullOrEmpty()]$Value)
try {
Get-ItemProperty -Path $Path -Name $Value -EA Stop
return $true
} catch {
return $false
}
}
try {
$Reason = ""
if ($IsLinux) {
if (Test-Path "/var/run/reboot-required") {
$Reason = "found: /var/run/reboot-required"
Write-Host "⚠️ Pending reboot ($Reason)"
}
} else {
if (Test-Path -Path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\RebootRequired") {
$Reason += ", ...\Auto Update\RebootRequired"
}
if (Test-Path -Path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\PostRebootReporting") {
$Reason += ", ...\Auto Update\PostRebootReporting"
}
if (Test-Path -Path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\RebootPending") {
$Reason += ", ...\Component Based Servicing\RebootPending"
}
if (Test-Path -Path "HKLM:\SOFTWARE\Microsoft\ServerManager\CurrentRebootAttempts") {
$Reason += ", ...\ServerManager\CurrentRebootAttempts"
}
if (Test-RegistryValue -Path "HKLM:\Software\Microsoft\Windows\CurrentVersion\Component Based Servicing" -Value "RebootInProgress") {
$Reason += ", ...\CurrentVersion\Component Based Servicing with 'RebootInProgress'"
}
if (Test-RegistryValue -Path "HKLM:\Software\Microsoft\Windows\CurrentVersion\Component Based Servicing" -Value "PackagesPending") {
$Reason += ", '...\CurrentVersion\Component Based Servicing' with 'PackagesPending'"
}
if (Test-RegistryValue -Path "HKLM:\SYSTEM\CurrentControlSet\Control\Session Manager" -Value "PendingFileRenameOperations2") {
$Reason += ", '...\CurrentControlSet\Control\Session Manager' with 'PendingFileRenameOperations2'"
}
if (Test-RegistryValue -Path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce" -Value "DVDRebootSignal") {
$Reason += ", '...\Windows\CurrentVersion\RunOnce' with 'DVDRebootSignal'"
}
if (Test-RegistryValue -Path "HKLM:\SYSTEM\CurrentControlSet\Services\Netlogon" -Value "JoinDomain") {
$Reason += ", '...\CurrentControlSet\Services\Netlogon' with 'JoinDomain'"
}
if (Test-RegistryValue -Path "HKLM:\SYSTEM\CurrentControlSet\Services\Netlogon" -Value "AvoidSpnSet") {
$Reason += ", '...\CurrentControlSet\Services\Netlogon' with 'AvoidSpnSet'"
}
if ($Reason -ne "") {
Write-Host "⚠️ Pending reboot (registry contains $($Reason.substring(2)))"
}
}
if ($Reason -eq "") {
Write-Host "✅ No pending reboot"
}
exit 0 # success
} catch {
"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
exit 1
}
```
*(generated by convert-ps2md.ps1 using the comment-based help of check-pending-reboot.ps1 as of 10/19/2023 08:11:36)*