In Windows 7 on the View tab of the Folder Options window -
something periodically changes some of the settings.
It changes "show hidden files" to "don't show hidden files"
It checks "hide extensions for known file types" which I have set to unchecked
It checks "hide protected operating system files" which I have set to unchecked
This happens every couple months or so.
I have McAfee Security Center installed v 12.8 - BUT it is also installed on our other 2 machines who don't manifest this oddity.
Any ideas on where to start looking for a culprit?