That is even simpler than baking an apple pie
take this
1. Click On Start
2. Go To Control Panel
3. Click On Folder Options
4. In the general tab Look for %26#039;click items as follows%26#039;
5. Find %26#039;single click to open an item%26#039;
6. Select the stuff found in step 4.
7. Click on OK.|||Open any folder
Select TOOLS %26gt; FOLDER OPTIONS
Select %26quot;Single-Click to open an item%26quot;
APPLY and OK.|||In Windows Vista
go to START %26gt; CONTROL PANEL
click Classic View on the left panel
double click Folder Options
The option should be there