Why does UAC Prompt disable Aero and dim the screen when it appears?

Whenever your UAC prompt appears in addition to asks for your permission, y'all may accept noticed that it darkens the covert in addition to temporarily turns off the Aero interface – and it itself appears without the transparency. This happens inwards Windows Vista, Windows seven in addition to Windows 8 too. This is called Secure Desktop.

When y'all purpose Flip 3D inwards Windows Vista, however, y'all tin come across it equally having the Aero transparency. You tin come across it below inwards the showtime icon correct inwards the front. Here the UAC prompt appears amongst the transparency.

This is genuinely a safety feature. Using Secure Desktop prevents other applications from manipulating the UAC prompt. When y'all bear out whatever chore which is inwards demand for UAC permission, for safety reasons, when Windows asks for the UAC confirmation, it separates the UAC prompt dialog box from your running desktop process. The UAC dialog box runs nether a secure means desktop, in addition to so that whatever malware which may last running nether the regular Aero enabled desktop, volition precisely non last able to access the UAC to authorize whatever action.

Nevertheless, if y'all would similar to destination blackening out of the covert when the UAC prompt appears or are but a Aero lover who likes to come across the UAC prompt amongst the transparency, y'all tin disable Secure Desktop. Do banknote however, that yesteryear doing so, y'all would last opening your reckoner to possible safety risks & threats, in addition to thence is non advisable.

Source: https://www.thewindowsclub.com/

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