As the VAIO USB camera is designed to always reserve a certain data transfer range for high-quality images, this sysmptom may appear when other USB devices are contending with the camera for resource at the same time. Therefore, do not use other connected USB devices when using the camera.
For more information, please refer to the relevant solution in Microsoft's technical support website.
Article ID: 327863
Last Modified: September 19, 2002
Title: Stop Error Ox7E Occurring in USB hub.sys. If USB Bandwidth Consumption Exceeds 100 Percent