Try uninstalling Intel HD Graphics driver in "Add / Remove programs", if this doesnt help or the driver reinstalls itself from some hidden place on your hdd, manually delete the Intel HD Graphics in Device Manager, and let Windows install the Generic VGA driver. Then the intel installer should be able to detect your graphic hardware.
Of course only if this is the issue similar to the one I had half an hour ago on my HP, it is also possible that Sony changed some hardware IDs and vanilla driver wont work then. But It's worth trying.
Let me help you with this.
It is important to say this usually occurs because or drivers are generic drivers for OEM systems. It may be necessary to install the driver provided by the Computer Manufacture to solve this but you can try the steps mentioned here: