But it will not be in your stream!This is not something OBS can disable, by Microsoft's intention.
Ok, but why don't some people have it and others have it? And if we switch to a later version of Windows we will no longer have it?If the yellow outline is around a window/screen you are capturing, this was added by Microsoft intentionally to warn users that the window/screen is being captured by another program, to prevent malware/spyware from grabbing images of bank details, passwords, etc.
This is not something OBS can disable, by Microsoft's intention.
And to no longer have the yellow outline, which capture should be put?It depends on the Capture Method...