Hi, I think what you are talking about are called "Balloons" and I only know
away to turn all off or on. If you want to get rid of all of them try the
following:
*click Start > Run > type REGEDIT > ENTER
* navigate to the following key:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\
Advanced
* right-click the right pane, select new > DWORD value > name it
EnableBalloonTips
* double click EnableBalloonTips > give it a value of 0
Disable: 0
Enable: 1
Tip:
'Export' two keys to your Drive, one with the balloons enabled and one
disabled. Then you can easily go back and forth when needed.
Hope this helps