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Skype for Business, like Lync before it, and Teams after it, doesn't allow for sharing a &quot;privileged&quot; window. That is, a window where &quot;run as administrator&quot; has been used. <br />
<br />
Would that explain what you are seeing?
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Skype for Business, like Lync before it, and Teams after it, doesn't allow for sharing a "privileged" window. That is, a window where "run as administrator" has been used.

Would that explain what you are seeing?

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No, I am not referring to that, the run as command was never initiated, and the problem is not consistent. Sometimes the screen can be shared, sometimes it cannot.
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No, I am not referring to that, the run as command was never initiated, and the problem is not consistent. Sometimes the screen can be shared, sometimes it cannot.

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single monitor or multi-monitor are you attempting to show the right screen?
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single monitor or multi-monitor are you attempting to show the right screen?

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David, two external LCDs and one laptop display.
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David, two external LCDs and one laptop display.

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Michael, no, the screen is not being shared with elevated permissions.
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Michael, no, the screen is not being shared with elevated permissions.

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<div class="content wysiwyg-content">
Skype for Business shows a screen with a black background, when the screen is shared.<br />
OS: Windows 10<br />
Office 365<br />
Alternate solution: Just share the application instead of the entire window.<br />
Possible root cause: Not enough network bandwidth &nbsp;to share the screen.
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Skype for Business shows a screen with a black background, when the screen is shared.
OS: Windows 10
Office 365
Alternate solution: Just share the application instead of the entire window.
Possible root cause: Not enough network bandwidth  to share the screen.

Skype for Business shows a screen with a black background, when the screen is shared.

Windows 10 is a personal computer operating system featuring the "universal application architecture" (UAP); apps can be designed to run across multiple devices with nearly identical code, including PCs, tablets, smartphones, embedded systems, Xbox One, Surface Hub and HoloLens. Windows 10 also includes a virtual desktop system, a window and desktop management feature called Task View, the Microsoft Edge web browser, support for fingerprint and face recognition login, voice-based search (Cortana), new security features for enterprise environments, and DirectX 12 and WDDM 2.0 to improve the operating system's graphics capabilities for games.

Windows 10

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