I would like to recommend you to do the following:
1. Go to the device manager and uninstall the graphics driver, from display adapters.
2. Restart the system and look for the latest driver for your unit.
How to do this (step 2):
2.1. Find the brand of your CPU here: ARK | Your Source for Intel® Product Specifications
2.2. Check under graphic specifications the engine for your CPU (Intel HD Graphics xxxx).
2.3. Access the and look for the graphics engine your CPU has.
2.4. Download and install the latest driver.
If you require any further support, feel free to let me know.