How to automate patch management

Effective patch management is a security cornerstone. Without timely security updates, your systems are sitting ducks for exploits. Automating your patch management process removes human error, boosts consistency, and gives you back your time — assuming you’re using the right tools. Let’s look at three of the best ways to automate patch management: PowerShell, WSUS, and PDQ. 

What is automated patch management? 

Automated patch management uses tools or scripts to schedule, deploy, and verify software updates across all your endpoints — supporting vulnerability management and system security with no manual patching required. It cuts down on missed security patches, keeps compliance folks off your back, and frees you up for higher-level tasks (or at least for lunch). 

How to automate patching with PowerShell 

You can automate Windows patching with PowerShell by using the PSWindowsUpdate module to scan for updates, install approved patches, schedule patch runs, and log results.

But be ready to roll up your sleeves: You’ll need to track down updates, schedule them, and log them. It’s fully doable … assuming you have the time and the patience. 

Step-by-step: Patch Windows with PowerShell 

1. Install PSWindowsUpdate
   First, open PowerShell as an administrator. Then install and import the PSWindowsUpdate module.
   

   Install-Module -Name PSWindowsUpdate -Force Import-Module PSWindowsUpdate Get-WindowsUpdate

2. Scan for available updates 
   Start by loading up the Windows Update module (PSWindowsUpdate) to check what updates are waiting in the wings.

   Get-WindowsUpdate

3. Download and install updates 
   Want to install everything in one go without handholding? This’ll grab all available updates and reboot if needed:

   Install-WindowsUpdate -AcceptAll -AutoReboot

4. Schedule patching via Task Scheduler 
   Automated patching works best when you’re not awake to watch it. Set up a scheduled task to run your patching script during off-hours — like 3 a.m., when nothing’s running except your patch script (and that one mystery process that’s definitely not malware). 

5. Log results 
   Always log your installs. If something breaks later, you’ll want the receipts. 

Step-by-step: Patch third-party software with PowerShell

1. Find the silent installer URL 
   Head to the vendor’s site (like 7-Zip or Chrome), and grab the latest direct download link. Make sure it supports silent install switches (like /S or /quiet). 

2. Download the installer 
   Use Invoke-WebRequest to pull the file to a local temp path. For example: 

   $version = "2601" $url = "https://www.7-zip.org/a/7z$version-x64.exe" $installer = "$env:TEMP\7z$version-x64.exe" Invoke-WebRequest -Uri $url -OutFile $installer

3. Run the installer silently 
   Execute the installer with the appropriate silent flag: 

   Start-Process -FilePath $installer -ArgumentList "/S" -Wait

4. Log the installation result 
   Want to keep track of what got installed and when? Add a timestamped entry: 

   if(!(Test-Path 'C:\Logs')){ New-Item -Path 'C:\Logs' -ItemType Directory } Add-Content "C:\Logs\PatchLog.txt" "$(Get-Date): 7-Zip installation completed."

5. Repeat for each application 
   Each third-party app needs its own download source, silent install switch, version check, error handling, and logging. You can combine those scripts into one scheduled workflow, but you’ll need to maintain each app as vendors change installers or release paths.

PowerShell pros and cons 

✅ Flexible and scriptable 

✅ No third-party software required 

❌ Requires careful error handling 

❌ No built-in patch approval or compliance tracking 

PowerShell is powerful but unforgiving. It’s great if you like writing and maintaining scripts — not so great if you need real-time visibility or reporting. 

How to automate patching with WSUS 

Windows Server Update Services (WSUS) automates Microsoft patch approval and distribution for domain-joined Windows devices in on-prem environments. WSUS is deprecated, so while this method may still work, switching sooner rather than later could save you some headaches.

Overview: Automate Windows patches using WSUS 

1. Set up the WSUS server 
   Install the WSUS role and configure synchronization schedules. 

2. Approve updates 
   Choose which patches to approve for your environment — either manually or automatically based on classification. 

3. Configure Group Policy 
   Direct clients to the WSUS server using GPO settings. 

4. Set update timing 
   Use Group Policy to define when updates install and whether reboots are automatic. 

5. Monitor patch status 
   Check WSUS reports to track patch compliance and failures. 

WSUS pros and cons 

✅ Native Microsoft solution 

✅ Centralized control for Windows updates 

❌ No visibility into non-Windows software 

❌ Clunky interface and limited control over deployment schedule 

WSUS is decent for Microsoft-first shops, but it’s not exactly agile. For broader patch deployment needs, you’ll want something more modern. 

How to automate patching at scale with PDQ

PDQ automates patch management for remote and hybrid environments by deploying Windows and third-party updates from the cloud, with visibility into deployment status and failures.

It’s a cloud-based patch manager that handles both Windows and third-party updates — no GPOs, VPNs, or script-wrangling required. You get real-time visibility, automatic retries if something fails, and a growing library of prebuilt packages that update as new versions come out. 

Step-by-step: Automate patching with PDQ

1. On the left navigation bar, select Automations. Click the Create automation button in the upper-right corner. For this example, I’ll focus on 7-Zip.

   

2. Name your automation and select the relevant package from our prebuilt Package Library, which includes hundreds of the most popular apps. We update these when new versions are released to give you easy access to the latest updates and support true set-it-and-forget-it automation.

   

3. For the trigger, select Automatic to deploy updates as soon as a new version hits the Package Library. Alternatively, you can select Recurring if you prefer to update automatically on a set schedule. Finally, select the static or dynamic group you want to deploy patches to and click Save.

   

Easy peasy. Now I’ll never worry about 7-Zip falling out of date again. And once I repeat this process for the rest of the software in my environment, missing patches and unpatched software vulnerabilities will be a thing of the past. A few minutes now will prevent a lot of headaches later. 

PDQ pros and cons 

✅ Cloud-native and built for remote teams 

✅ Supports third-party and Windows updates 

✅ Real-time feedback and retry logic 

❌ Requires a subscription (but you can try it free for 14 days) 

When to use which patch management method 

The best patch management tool depends on how your endpoints are managed. PowerShell and WSUS can work for smaller or Microsoft-only environments, but remote, hybrid, and multi-app fleets usually need cloud-based patch management software with visibility, reporting, and automation built in.

Each method has its place. PowerShell gives skilled admins maximum control, WSUS works for centralized Microsoft patching, and PDQ gives remote or hybrid IT teams a simpler way to automate Windows and third-party updates from the cloud. For endpoint management at scale, prioritize tools with patch visibility, deployment history, third-party app support, and compliance reporting.

Automated patch management FAQs 

What is the difference between manual and automated patch management? 

Manual patch management requires admins to identify, download, test, and deploy each update themselves — a time-consuming and error-prone process. Automated patch management solutions streamline this by handling patch discovery, deployment, and verification across endpoints on a schedule or trigger. 

Why should I use an automated patch management tool? 

An automated patch management tool helps enforce patch management policies, reduce human error, and ensure timely deployment of critical updates. These tools can improve security posture, increase uptime, and save IT teams hours of manual effort. 

Can automated patch management handle third-party applications? 

Yes, many automated patch management tools — like PDQ — support third-party patching. This includes deploying the latest patches without manual intervention. 

How do I choose the right patch management solution? 

Look for a patch management solution that fits your environment, including your OS mix and network setup. Most sysadmins prefer a tool that offers real-time visibility, automates critical patch deployment, supports compliance reporting, and plays nicely with their existing tools. Bonus points if it’s easy to use and scales with your organization. 

What should IT teams look for in a patch management tool?

A patch management tool should help IT teams automate deployments, patch third-party applications, target endpoint groups, control reboot behavior, and report on patch status. For small and mid-size teams, the best tools reduce manual work without adding complicated infrastructure or fragile workflows.

Look for support for:

Is automatic patching secure?

Yes, automatic patching is secure when properly configured. It ensures critical patches and security updates are applied promptly, reducing exposure to known vulnerabilities. However, you may want to test and vet packages before deployment to avoid disruption. 

What is the best patch management tool for managing endpoints at scale?

The best patch management tool for managing endpoints at scale is one that supports automated deployments, third-party app patching, remote device management, and patch status reporting. For remote or hybrid Windows and macOS environments, PDQ is a strong fit because it manages patches from the cloud without VPN dependency.

Automating patch management isn’t just a nice-to-have — it’s the only way to keep up. Whether you’re a PowerShell purist, a WSUS stalwart, or ready to embrace PDQ, the key is consistency. Define your patch management policy, test patches, then let the automation do the heavy lifting. 

Want to see what an automated patch management software like PDQ can do for your patching strategy? Try it free for 14 days.