This message was posted on behalf of Intel Corporation
Thank you for contacting the Intel community.
Please bear in mind that your best contact support is with your system manufacturer as they are more familiar with the total configuration of your integrated system and the way all the features interact with each other.
However, I can suggest you to access the Sony Vaio website and reinstall the Intel® HD Graphics driver for your Laptop.
This also depends on how the computer manufacturer designed your system. Some computers have a hardware switch. Some computers have an icon in the Windows taskbar that you can use to switch the graphics controller. Some computers automatically switch to the Intel graphics if the computer changes to battery power or it can switch to the discrete graphics if the computer is plugged into AC power. Some computers use third party software to do the switch.
Check the help documentation from your computer manufacturer to see how the graphics switch works on your PC.
You should be able to get support here:
NOTE: This link is being offered for your convenience and should not be viewed as an endorsement by Intel of the content, products, or services offered there.