Reliability Monitor

 A very simple tool that can be used to monitor System ( Software and hardware ) issues that occurred during a time interval.
It assigns a number/rating called "Stability Index" that shows server reliability.

Practical Usage - 

I used this tool a lot during troubleshooting Windows Servers OS. Assume there is an issue reported on xx day, so normally an admin will go to Event viewer to check all the logs during the time issue was reported to find the root cause, but we can make use of Reliability monitor as well to quickly have a glance on what happened prior or on the day issue was reported. This sometimes do save lots of time.

Using Reliability Monitor
Click Windows Icon --> Search with something like "Reliability" --> Click on View Reliability history

We will see something like below. Simply click on the date & view information.

Ex- On 28th Dec 2022, we can easily see there is a critical alert which states windows was not properly shutdown & along with that an informational event which states an application named "putty " was removed from the system.

We can then click on Technical detail to get some more information on the event / alert.

Finish..