Expand or collapse the scroll bar in Windows XP Picture 1
2. Select the Appearance tab on the Display Properties window, then click the Advanced button in the right corner of that window.
Expand or collapse the scroll bar in Windows XP Picture 2
3. Click the drop-down arrow in the Items section. A list of items to change will appear. Select Scrollbar from that list.
Expand or collapse the scroll bar in Windows XP Picture 3
4. The default size of scrollbars is 17 . If you want to increase the size of the scroll bar, select a higher number. If you want to reduce its size, select a smaller number.
Expand or collapse the scroll bar in Windows XP Picture 4
5. Click OK after the changes are completed.
Expand or collapse the scroll bar in Windows XP Picture 5
6. You will be returned to the Appearance tab of the Display Properties window. In this screen, click Apply . After a while, your scroll bar will be returned to its new size.
Expand or collapse the scroll bar in Windows XP Picture 6
7. Below is an image of a larger scroll bar (30px instead of 17 px)
Expand or collapse the scroll bar in Windows XP Picture 7
8. And here is an image of a scrollbar that is smaller - 13px
Expand or collapse the scroll bar in Windows XP Picture 8
9. If you are not happy with this result, repeat the above process until you see a size you like. And if you want to go back to the default size, set the size to 17.