Hi Quoc,
I am Sumit, an Independent Advisor here to assist you.
Completely remove everything of Graphics driver using DDU and install the newest copy of the driver available.
http://www.guru3d.com/files-details/display-dri...
Then download the newest copy from here, do not use the existing setup on your machine.
https://www.amd.com/en/support
Keep us posted.
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