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.
You can add the hidden Speak command to the Quick Access Toolbar.
Open PowerPoint and look at the very top-left corner of the window for the Quick Access Toolbar, next to the Save and Undo icons. Click the small drop-down arrow at the end of the toolbar and select More Commands.
In the window that opens, find the Choose commands from box near the top and change it to All Commands. Scroll down the alphabetical list until you find Speak. Select Speak, click Add, and then click OK.
To use the feature, highlight or select the text on your slide that you want to hear. Then click the new Speak speech-bubble icon on the Quick Access Toolbar. PowerPoint will read the selected text aloud. Click the Speak icon again to stop.
Alternatively, you can use Windows Narrator if you want a system-level reader that can read information from the screen. Press Windows Key + Ctrl + Enter to turn Narrator on or off.
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hth
Marcin