there is a red line one .pixle wide going downwards on.my windows 10 pro and the red line is not visible when the screen is white. Please i beg you t

[Windows 10]

Ive done brought a Windows 10 pro and one day after i brought it this red line appeared, you cant see the line when the screen is white and i tried everything. Restarting the computer, using task manager, using device manager, And this is really my last hope.

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