USB devices such as; digital cameras, mice, flash drives and keyboards all share the same bandwidth allocated by Windows. The Windows XP USB user interface does not support more than 10 host controllers. When the bandwidth reaches the 100% allocation, you will receive a "Stop Error 0x0000007E" message.
Go to Start>> Right click on My Computer.
Once at the Device Manager, double click "Universal Serial Bus Controllers", then double click the first USB Root Hub listing .
In the resulting window, select Advanced.
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