Click on Item, then scroll down and click on Icons. Change the size of the icons by adding a larger or smaller number in the Size box that appears to the right. A larger number will create a larger icon and a small number will create a smaller icon. Click OK if you decide to accept the resized icons and fonts. Click Cancel if you decide to maintain your current settings.
Large icons require additional system resources.
If memory and resources are scarce, use the small icons. Click the Start menu button. Then click on Settings, and then on Control Panel. This will open a window called Display Properties. Click on Effects.