Learn how to check for, download, and install KB 2919355, an update for Windows 8.1 and Windows RT 8.1.

You can record your PowerPoint presentation—or just a single slide—and capture voice, ink gestures, and your video presence. The completed recording is like any other presentation.

Training: Learn how to create a spreadsheet, enter data, and create a chart in Excel.

Here are a few different ways to find help for Windows. Search for help - Enter a question or keywords in the search box on the taskbar to find apps, files, settings, and get help from the web.

Learn how to change your notification settings and quick actions using the notification center in Windows.

Si vous rencontrez des problèmes de son ou audio, les suggestions suivantes peuvent vous aider. Ces conseils sont affichés dans l’ordre. Commencez par le premier de la liste ; s’il ne vous permet pas de résoudre votre problème, passez au suivant.

Learn how to change your presence settings to automatically wake up your Windows 11 PC when you approach.

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Get Microsoft billing support. Find help with Microsoft Store purchases, subscriptions, refunds, payment options, and checking your order history.

Optimizations for windowed games improves gaming on your PC by using a new presentation model for DirectX 10 and DirectX 11 games that appear in a window or in a borderless window.