Hello Sudheer Tumkur, it seems to be that your Sony Vaio computer comes with a 1st generation processor. In order to use WIDI on this system it would be necessary to use the driver version 3.0.13.0.
Any newer version won’t be supported on this processor.
Please try uninstalling the current driver version you have and install the 3.0 again.
Please check the following notes added to the driver under detailed description
Version 3.1.29: Note:
This version of the Intel® Wireless Display software DOES NOT support Mobile Intel® 5 Series Chipset based systems (2010 Intel® Core™ Processors based systems). For these systems, please download Intel Wireless Display version 3.0.13.