There is problem with my blade15 screen

When I use my laptop, there is a black rectangle that randomly appears on my laptop screen. It sometimes appears at the bottom left, center, or bottom mid of the screen. However, it will not happen if I open the same program on an extended monitor. The rectangle usually flashes on the screen as you can see in the attached video. This issue is not related to the start menu because when I move the taskbar, It still appears at the same location.

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So, I think that there is a problem with my blade screen. I try - update window - re-install graphic card driver - disable all the service on window except Microsoft services - set the refresh rate - sfc /scannow I do not know how to fix this. please help m e. This is my system information. if you need more information please let me know. OS Name Microsoft Windows 10 Home Version 10.0.18363 Build 18363 Processor Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz, 2601 Mhz, 6 Core(s), 12 Logical Processor(s) Physical Memory (RAM) 16.0 GB RTX 2070 Max Q BIOS Version/Date Razer 1.04, 7/9/2019