Changing the scroll bar size in Windows XP

Right click on your desktop and select Properties. A window like the one below will appear, click the Appearance tab. Now click the Advanced button at the lower right. Go to the next step.

The below window will appear, drop down the Item menu and select Scrollbar. Go to the next step.

In the window below you will see a size window, in this case it says 17, using the up and down arrows, you can increase or decrease the scrollbar size. After you are finished adjusting the size, click ok, then apply and ok. The change takes a little time so be patient.