Thank you, JARDENNIS. At least for the moment, this seems to have resolved the issue described.
I not sure why the Flash Installer (flash10x was my previous version, btw) didn't show anywhere prior to restarting explorer.
I am also not sure if this will happen again come next Flash update.
As a general note for anyone who may have experienced this symptom due to another reason, I have noticed that the following are
typical causes that the task bar auto-unhides:
- A modal window (i.e. modal dialog box) initiated from a running task. The task that initiated this may sometimes
flash on the taskbar*.* Check the taskbar and see if you find a flashing task. If so, then switch to that task and deal with the dialog box in order to make the task-bar auto-hide again.
- A modal window initiated by Windows Explorer. This is often (but not always) the result of an error MS Windows has encountered.
In some cases a flashing task appears on the task bar for this special dialogue box.
- Some system tray notifications, initiated by the running system tray task. Note that you may or may not see a notification
"bubble" that accompanies a notification. You may not even see the system tray change in any way -- noticeable or otherwise.
If you have any system tray icons that you have opted to always show (via "Show icon and notifications"), then you may have to click on each one of them to see if any of them require attention.
In this case, absolutely
none of the above was evident.
I don't think that the folks at Microsoft realize just how debilitating it is to have a taskbar that does not auto-hide properly.
When you chose NOT to auto-hide the taskbar, the bottoms of all windows hover above the taskbar.
When you have chosen to auto-hide the taskbar, though, the bottoms of your windows may be covered by an errant taskbar.
All maximized windows (and some others) have their status bar and horizontal scrollbar covered, and the only way to access them is to "restore" the
window -- which usually also means re-sizing it. The same applies to any downloads in Internet Explorer -- restore and resize. What a pain!
If Microsoft did realize what was going on here, then they would probably have offered a solution besides posting a form-letter "check for viruses"
response that appears in this thread several times.