Your graphics and processor are not supported on Windows 10.
For miracast support, contact Microsoft.
Can you please let us know any documents/link to update drivers for above specifications(windows 10 - 32 bit) to work miracast.
There are no drivers available from Intel for your graphics for WIndows 10, as it is not supported.
The best you can do is to use the generic Microsoft driver. Also, contact Microsoft regarding Miracast.