To make icons on the desktop large

                    The normal size for icons in Windows XP is 32 X 32 pixels.Windows XP also has support for larger icons, which are 48 X 48 pixels.

Follow these steps:

1. Right-click the desktop and select Properties.
2. 2. Click the Appearance tab and then click the Effects button.
3. Check the Use Large Icons box.
4. Click OK to save your changes.
5. Click the OK button again to close display properties.