1. Open your computer window by clicking on Computer.
2. Click Folder and Search Options in the file menu under Organize.
3. Under the General tab, make sure that the option 'Double-click to open an item' is
selected.
4. Click on OK to save the settings.
5. If the 'Single-click to open an item' option was not selected, try resetting the mouse by
switching it off and on.
Disabling the Single-Click to open option in Windows XP
1. Open My Computer.