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Operating systems on mainframes and on servers have differentiated between superusers and userland for decades. This policy setting determines the behavior of application installation detection for the entire system. Some software might attempt to install itself after being given permission to run. The user may give permission for the program to run because the program is trusted. Then the user is prompted to install an unknown component. This security policy provides another way to identify and stop these attempted software installations before they can do damage. I tried Tomasz solution which is to disable Secure Desktop through the use of secpol.msc (or gpedit.msc).

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By default, all users can share their screen in a Zoom meeting. You can restrict the ability to share a screen to just the host once in the meeting or in your account settings for all future meetings if desired. UAC has the potential to interfere with the normal operation of certain programs.

Here is how to enable or disable this feature in Windows 10. On Windows 10, the User Account Control feature works as an additional security layer to prevent malicious code from running undetected on your device. If the feature is enabled , when an app requires administrator access, Windows 10 will display an elevation prompt requesting the user to approve or deny the action.

I used a local administrator to do that and I succeeded. However, even if secure desktop seems to be disabled, I still have UAC popups on remote computer BUT I still have a black screen on Quick Assist. The downside is that the secure desktop is designed that no one can remote control the UAC dialog and inject something as the dialog is not running on the users interactive desktop.

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They both only notify you with the UAC dialog box when programs try to make changes to your PC, but not when you make changes to Windows settings. The difference between the two settings is that the higher one dims your screen during the notification and the lower one doesn’t. When the screen is dimmed, you can’t access anything else but the UAC prompt. With no dimming, you can access your desktop and do other things before responding to the UAC prompt. In both highestAvailable and requireAdministrator modes, failure to provide confirmation Wikidll results in the program not being launched.

The secure desktop actually makes a bitmap copy of the current screen which is why if you have a video running when the secure desktop comes up, the video will appear to freeze. If you do not respond to a UAC prompt on a Secure Desktop after 150 seconds, Windows will automatically deny the request and return to the standard desktop. Currently elevation is happening on the Secure Desktop which just gives me a blank screen. I’m trying to help users to install urgent software remotely, but for some reason the GPO we have used to disable the Secure desktop when prompting for admin credentials has not applied. By default, the UAC prompt appears on a the dimmed secure desktop when you get an security request by the User Account Control.

• Registry values may contain backslashes in their names, but doing so makes them difficult to distinguish from their key paths when using some legacy Windows Registry API functions .
• For compatibility with the previous behavior, each registry key may have a "default" value, whose name is the empty string.
• Registry values are referenced separately from registry keys.
• Each registry value stored in a registry key has a unique name whose letter case is not significant.
• Registry values are name/data pairs stored within keys.
• The Windows API functions that query and manipulate registry values take value names separately from the key path and/or handle that identifies the parent key.

Without the secure desktop the UAC dialog is running like every other Windows dialog on the interactive desktop of the user. This makes the device vulnerable to UAC spoofing attacks. Secure Desktop ensures that malware is unable to alter the display of the UAC prompt as a method of tricking you into allowing administrative access. When you configure UAC to use the Secure Desktop, the desktop is unavailable when a UAC prompt is triggered. You must respond to the UAC prompt before you can interact with the computer.