EventSentry Light is a powerful tool that can monitor your Windows event logs (and system health), alerting you to any problems.

If you're a Windows expert and want to be warned if a particular event type occurs, for instance, then you can have the program display a message or send you an email.

A Software Monitoring option allows the program to log when software is installed, or uninstalled (useful if your PC has several users and you'd like to track what they're doing). And it can also record programs that have configured themselves to load when Windows launches.

A Disk Space monitor is able to alert you when the free space on a drive gets too low (you get to decide what figure that might be). Or it can check a particular folder, alerting you when its size exceeds or falls below a particular limit.

And the Performance Monitoring module can track your PCs CPU or memory usage, again logging the details if something's hogging all your resources.

If you need even more power then opting for the commercial edition will get you the ability to manage more than 2 remote computers, with web-based reporting and iPhone/ Android apps. Command line tools support automation, there are full software and hardware inventories, and if you have any problems then you can call on phone, email and even "getting started" support. Prices start at $85 per host, and the EventSentry site will tell you more.

Version (changelog).

Collector: Fixed issue where CPU and memory utilization could slowly increase over time and some systems and cause the service to stop working
Collector: Now accepts remote NetBios host names even when hosts are added as FQDN
Collector: Fixed issue where collector could crash at runtime when large number of hosts are added to configuration
Agent: Fixed issue where agent would incorrectly report 10803 event after configuration updates, indicating that the required audit settings could not be applied.
Management Console: Minor usability improvements
Built-In Database: Updated PostgreSQL to v9.6.7
Web Reports: Updated Tomcat to 8.5.28
Web Reports: Updated Java to 1.8.0-161
Web Reports: Fixed dialog while creating a monthly/weekly jobs
Web Reports: Expanded compliance reports to include Missing Audit Settings

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It can be a little complex, but master the basics and you'll find EventSentry Light is a handy way to track exactly what's happening on your PC