If running Windows XP with Service Pack 1, the Universal Serial Bus (USB) ports may only support older version drivers and run at lower speeds. The newer service packs offer the higher speed USB 2.0 drivers for your computer. However, if you can't or choose not to upgrade to a newer service pack, still upgrade the low-speed USB port to the higher speed port to obtain faster transfer rates between the computer and USB devices.
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Click the "Start" button from the desktop to launch the start menu.
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Right-click "My Computer" and choose "Manage" from the menu.
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Click the symbol next to "System Tools" to expand the section.
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Click "Device Manager," then choose "Devices by Type" to view devices installed on your computer.
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Expand the sections under "Universal Serial Bus Controllers" or "Other Devices" to locate the "USB 2.0 EHCI Host controller" device.
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Right-click the "USB 2.0 EHCI Host controller" and choose "Update Driver" from the menu.
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Choose "Install the software automatically," then click "Next."
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Allow the computer to automatically detect and install the new USB 2.0 drivers and install them.
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Click "Finish" to complete the installation. You may need to restart the computer in order for the changes to your USB port drivers to take place.
