Windows Aero is a design setting that enables enhanced graphical effects and allows more sophisticated Window Capturing in OBS. On the other hand, disabling Aero can improve Display Capture performance.
For advanced users, another way is to start or stop the Desktop Window Manager Session Manager service. To do this, use the Services manager snap-in console (
services.msc) or an administrative command prompt. For the command prompt, use
net stop uxsms to disable and
net start uxsms to enable Aero again.