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PowerShell - Windows Updates

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Windows Updates

Code Properties

  • Language: PowerShell
  • Modules: PSWindowsUpdate
  • Requires: Administrator privileges

Overview

PowerShell script that uses the PSWindowsUpdate module to install all available Windows updates.

Code

#Requires -RunAsAdministrator
 
# transcript logging
$TranscriptFile = "$((Get-Date).ToString('yyyy-MM-dd-HHmmss'))-WindowsUpdate.log"
$TranscriptPath = Join-Path "$Env:TEMP\WindowsUpdate" $TranscriptFile
Start-Transcript -Path $TranscriptPath -ErrorAction Ignore | Out-Null
 
# execution policy
Set-ExecutionPolicy Unrestricted -Scope CurrentUser
 
# install PSWindowsUpdate if needed
if (!(Get-Module -ListAvailable -Name PSWindowsUpdate)) {
    Write-Verbose "Installing Module: PSWindowsUpdate..."
    Install-Module -Name PSWindowsUpdate -Scope CurrentUser -Force
}
Import-Module PSWindowsUpdate
 
# install updates
Install-WindowsUpdate -MicrosoftUpdate -AcceptAll -IgnoreReboot -ForceInstall
 
# restart
Write-Host "Restarting Machine in 20 seconds..."
Start-Sleep -Seconds 20
Restart-Computer -Force

Usage

# run as administrator
.\Install-WindowsUpdates.ps1
 
# or run commands individually
Install-WindowsUpdate -MicrosoftUpdate -AcceptAll -IgnoreReboot
 
# check for updates without installing
Get-WindowsUpdate
 
# list update history
Get-WUHistory

Appendix

Note created on 2024-05-03 and last modified on 2024-12-31.

See Also

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