Lenovo Application Interface Driver works as the programming and data interface which is commonly used for Lenovo drivers, utilities and application programs .This package updates the Lenovo System Interface Foundation to fix problems, add new functions, or expand functions as noted below. Lenovo System Interface .This device contains both SPI and I2C configurable interfaces. Direct (D2XX) drivers for Windows eliminate the requirement for USB driver development.These drivers are required for any Board of Education USB, PropScope, and other USB-based Certification achieved for Windows 10. Support for FT4222.I called Microsoft Taiwan, the expert said it may be the driver issue. my system is windows 8.1 pro, and I replaced new motherboard last week as I suspected last one has problem, Edited by britishdhez Monday, February 10, 2014 3:35 AM The AMDA00 Interface Driver is also causing serious issues.