A family of Microsoft presentation graphics products that offer tools for creating presentations and adding graphic effects like multimedia objects and special effects with text.
In current Microsoft 365 versions, ActiveX controls are considered a legacy feature and are disabled by default. When ActiveX is disabled, PowerPoint cannot create new ActiveX objects or interact with existing ones, which may explain why More Controls or Windows Media Player is unavailable.
You can try the following steps: File > Options > Trust Center > Trust Center Settings > ActiveX Settings
Select Prompt me before enabling all controls with minimal restrictions, restart PowerPoint, and check Developer > More Controls again.
If More Controls is still missing, right-click the ribbon and select Customize the Ribbon. Under Choose commands from, select All Commands, locate More Controls, and add it to a custom group under the Developer tab.
If it remains unavailable, it may be blocked by an organizational policy. For new presentations, consider using Insert > Video > This Device, since Windows Media Player ActiveX is a legacy solution.
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