You can switch off the appearing tool tips which are displayed when
you move your mouse over items that support the tool tips display.
To switch them off under current user navigate to:


- HKEY_CURRENT_USER\Software\Microsoft\Windows
\CurrentVersion\Explorer\Advanced


Create or modify in the right pane the entry below:

ShowInfoTip

If you need to create it do a rightclick in the right pane , new ,
REG_DWORD [Dword Value] and name it like above.

Doubleclick now this entry and set it's value to:

0 = SowInfoTip disabled
1 = ShowInfoTip enabled