My Sony Laptop's Model SVP132190X
I've followed the update manual for installing Windows8.1 in Sony Vaio pro 13.
Please see the weblink Sony eSupport - Windows 8 & 8.1 Upgrade information for the manual.
After updating Windows8.1 and the additional windows updates, I've removed the graphic and wifi driver.
Then download and install the latest driver version in intel's download site.
But I cannot see the "add a wireless display" icon in the device->project on the charms.
I've checked the WiDI update tool of Windows 8.1 on Support Knowledge Base
The WiDi update tool said "No updates required. WiDi is ready to use" (Please see the attached screen shot)
How can I enable the Miracast in my laptop?
My graphic driver is HD 4400 and version is 10.18.10.3621 (2014-05-17)
My wifi driver is Wireless-N 7260 and version is 17.0.3.2 (2014-04-23)