Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
"ShowInfoTip"=dword:00000000
"EnableBalloonTips"=dword:00000000
Save the file, and run it. Accept the dialog message and reboot.
To Enable the tooltips, paste the following into a text file called, e.g. enableToolTips.reg:
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
"ShowInfoTip"=dword:00000001
"EnableBalloonTips"=dword:00000001
Save the file, and run it. Accept the dialog message and reboot.