What is being captured/displayed with the Last Use (Profile Information) field?

I have a report that is showing a value from last week for a user account that has been disabled for over a year.  What would be causing the Last Use value to be updated for…

Running a computer discovery against a list of servers, i receive a number of errors. There is lack of explanation as to what they may be. There is nothing in the knowledge base that explains the root cause. Here are a list of errors i need to understand…