In event viewer prior to today's date listing I find two listings, yellow
icon, source as, userenv another listing for another date,Red circle
error, source description as event system.
Appreciate definition, meaning, comments.
Yellow items are "alerts" - an event that may or may not require your
attention. Discerning whether action needed depends on the text describing
the event.
Red items are "errors" - also events that may or may not need your
attention. If having a problem with a part of the operating system or an
application, the error event information is a "clue" that can be researched
online or reported to the appropriate tech support people. In other cases,
these errors are expected and the event text is simply informational.
Example of an expected error: A program attempts a connection at a time
that you know the computer did not have internet access - failure is
reported but expected so no action is necessary.
To read the details of an event, double click on it. All events have a
"golink" that you can click when you are online. A prompt appears telling
you that the error information is being sent to OCA (online crash
analysis). OK the prompt and a web page pops up. If there is further
information about that error available, it will be displayed. I have found
that sometimes that info is helpful but have also received results that
were too general to be useful or that showed "no further information."
There is also a website:
http://eventid.net
You can look up your event in their database.
Also (barring the possibility that the events are actually serious), the
appearance of two events (yellow or red) is not something I would worry
about. Repetition of the same event in great abundance is when I start
getting sweaty and looking deeper.