Paessler PRTG

Effective Windows update
and patch checking with PRTG


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    PRTG monitors Windows patches & updates in your network

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    PRTG notifies you in the event of faulty or incomplete updates

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    PRTG provides an overview via a centralized dashboard

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    PRTG comes with a built-in alarm for increased security and uses WMI, PowerShell, and SNMP

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    PRTG frees up precious time by offering automated monitoring















Update checker: Greater software and operating system security

Software and operating systems are constantly evolving. Every week, new weak spots are discovered and eliminated. Security loopholes are detected and closed. Above all, security-related updates and patches must be added quickly in order to remove dangerous gateways in your systems.

Professional update and patch monitoring ensures that all of the operating systems and applications currently in use are up-to-date. Gone are the days of manually checking for all the latest versions. With PRTG in the background, you can rest assured that when it comes to your Windows hosts, everything is in order.

Thanks to PRTG, the entire staff can work with peace of mind.


quote steffen ille

“The greatest advantage of PRTG? You get to rest easy.“

Steffen Ille, Bauhaus-University of Weimar, Germany


How update checking with PRTG works

 i How PRTG defines sensors

In PRTG, “sensors” are the basic monitoring elements. One sensor usually monitors one measured value in your network, e.g. the traffic of a switch port, the CPU load of a server, the free space of a disk drive. On average you need about 5-10 sensors per device or one sensor per switch port.

View video (3:26 min.)

A sensor scans Windows operating systems for their current version, then inquires online as to the most current version available. If the two do not match, the administrator will be notified as instructed or an update will be arranged.

An example: PRTG features the preinstalled Windows Updates Status (PowerShell) Sensor so you can be sure your Windows is always up-to-date.


How update checking in PRTG looks like

Windows Updates Status (PowerShell) Sensor

This sensor tells you when the last update was performed on an individual device. It also displays the Windows updates that have already been installed and notifies you if updates are missing or critical updates have yet to be installed.

To the sensor

WMI Security Center Sensor 

This sensor displays the update status of Windows Security Center. It will also send you a message if Windows Defender – the Windows virus scanner – is no longer up-to-date.

To the sensor

WSUS Statistics Sensor

The WSUS Statistics Sensor monitors the Windows Server Updates Services (WSUS) Server, or the server that distributes all Windows updates. It collects and consolidates various statistics on all your devices. You’ll see, for example, which computers still need updates or where errors have occurred. This sensor provides you with a total overview.

To the sensor


Trusted by 500,000 users and recognized
by industry analysts as a leader

“Fantastic network and infrastructure monitoring solution that is easy to deploy and easier still to use. Simply the best available.”

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“Software is absolutely perfect, Support is superior. Meets all needs and requirements, this is a must have solution if you are needing any form of monitoring.”

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“The tool excels at its primary focus of being a unified infrastructure management and network monitoring service.”

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Windows updates – or more? The flexible PRTG licensing model

Free update and patch checker

Free update and patch checker

Simply looking for a way to make sure your Windows system is always up-to-date? If so, then the free version of PRTG is for you. It comes with 100 sensors, the alarm, the reports function, and all the other features. Download PRTG, create the above-mentioned sensors, and get started with limited monitoring.

Comprehensive monitoring tool

Comprehensive monitoring tool

The advantage of our software? PRTG is a centralized tool for your entire network. Checking the status of your network, applications, bandwidth, and traffic has never been easier. Save time, effort, and lots of frustration. PRTG comes with a customizable alarm system that alerts you before noticeable disruptions or malfunctions make life difficult for your coworkers. See our prices.


Software patches and updates: The same thing?

What is patch monitoring?

Patches are offered for operating systems and software. They are usually made available when an error is detected which must be fixed at once. Such errors often include security loopholes. Windows can offer several patches in one package. Each patch detected by the PRTG patch checker has a different version number.

What is update monitoring?

Updates are also used to optimize programs. But unlike patches, they are scheduled in advance and do not take place at once. Updates (or “upgrades”) are offered when new features become available for a system or piece of software. They therefore upgrade and enhance programs. The program is updated and receives a new version number.


PRTG makes your job easier

Our monitoring software frees you to focus on other tasks by promptly notifying you of potential issues.


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Save effort

PRTG gives you one central monitoring tool for your servers and entire network. Enjoy a quick overview of your whole infrastructure via our dashboard and app.

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Save time

Getting started with PRTG is a breeze. Setting up or switching from another network monitoring tool is easy thanks to the auto-discovery and pre-configured device templates.

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Save money

80% of our customers report substantial cost savings with network monitoring. Your costs of licenses will likely pay for themselves within weeks.



No updates in sight? Here are some common causes – and consequences 

Too many devices in the network

Too many devices in the network

IT infrastructures have a way of expanding over the years. They deploy servers, routers, workstations, and other devices, most of which are made by different manufacturers. Because these devices are added to the network at different times, they often run on different versions of an operating system or on different systems altogether. What’s more, the same patch or update is not always required for every computer.

Errors during installations

Errors during installations

Like backups, many updates are performed at night to prevent them from disrupting a company’s daily business. However, if errors occur at night, they’re not always detected the next morning. An automatic update and patch checker keeps system administrators in the know.

Security loopholes

Security loopholes

On the other hand, without an update and patch checker, security loopholes can quickly crop up in the network. Here, firewalls and antivirus software often provide for little or no defense. Update and patch monitoring therefore helps administrators keep their systems secure. Outdated versions are a real security risk.


4 good reasons to choose PRTG as your update checking tool


An enhanced overview

An enhanced overview

Enjoy a quick and easy overview of the status of your software and operating system, as well as any updates and patches which were successful or failed.


Automatic notifications

Automatic notifications

Should an update fail or security patches become available, you will be notified immediately, wherever you are.


Automation for a lighter workload

Automation for a lighter workload

By relying on the PRTG sensors and notifications, you no longer need to take the time to manually check each and every case.


Increased security

Increased security

Thanks to the additional safeguarding of your update process, you can ensure critical weak spots are eliminated as quickly as possible.



Create innovative solutions with Paessler’s partners

Partnering with innovative vendors, Paessler unleashes synergies to create
new and additional benefits for joined customers.


baramundi and PRTG create a secure, reliable and powerful IT infrastructure where you have everything under control - from the traffic in your firewall to the configuration of your clients.

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Paessler and Plixer provide a complete solution adding flow and metadata analysis to a powerful network monitoring tool.

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With ScriptRunner, Paessler integrates a powerful event automation platform into PRTG Network Monitor.

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Your network at a glance – even on the go

Set up PRTG in minutes and use it on almost any mobile device.


PRTG comes with all the features you need, plus more your IT infrastructure won't want to live without.



PRTG monitors these vendors and applications in one view!


vendors vm ware



“Easy to implement and configure with good technical support.”

R. v. S., ICT Manager at Heinen & Hopman Eng BV


You can scan and monitor this with your PRTG

Log Monitoring

Keep an eye on all the syslog and Windows Event Log messages.

More information

Mail server monitoring

As an administrator, it’s your job to make sure the network runs smoothly. With PRTG, you’ll keep a constant eye on all your servers – and be promptly notified in the event of malfunctions.

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PRTG comes with a variety of built-in CloudWatch sensors to monitor Amazon Cloud and all AWS services.


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SharePoint Monitoring

A SharePoint Server malfunction can have serious consequences. PRTG monitoring helps you solve problems faster and keep SharePoint stable.

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PRTG the multi-tool

PRTG: The multi-tool for sysadmins

Adapt PRTG individually and dynamically to your needs and rely on a strong API:

  • HTTP API: Access monitoring data and manipulate monitoring objects via HTTP requests
  • Custom sensors: Create your own PRTG sensors for customized monitoring
  • Custom notifications: Create your own notifications and send action triggers to external systems
  • REST Custom sensor: Monitor almost everything that provides data in XML or JSON format


We asked: would you recommend PRTG?
Over 95% of our customers say yes!


Paessler AG conducted trials in over 600 IT departments worldwide to tune its network monitoring software closer to the needs of sysadmins.
The result of the survey: over 95% of the participants would recommend PRTG – or already have.


Recommend PRTG


Still not convinced?



More than 500,000 sysadmins love PRTG

Paessler PRTG is used by companies of all sizes. Sysadmins love PRTG because it makes their job a whole lot easier.

Still not convinced?


Monitor your entire IT infrastructure

Bandwidth, servers, virtual environments, websites, VoIP services – PRTG keeps an eye on your entire network.



Try Paessler PRTG for free

Everyone has different monitoring needs. That’s why we let you try PRTG for free. Start now with your trial.




Network Monitoring Software - Version (April 10th, 2024)


Download for Windows and cloud-based version PRTG Hosted Monitor available


English, German, Spanish, French, Portuguese, Dutch, Russian, Japanese, and Simplified Chinese


Up to 100 sensors for free (Price List)

Unified Monitoring

Network devices, bandwidth, servers, applications, virtual environments, remote systems, IoT, and more

Supported Vendors & Applications

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