Learn how to troubleshoot Windows sign in issues, including problems signing in to your Windows device after upgrading.

Learn how to use a health report in Windows Security to manage your device performance and keep your device secure.

Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.

Learn how to use the privacy dashboard in your Microsoft account and manage your privacy settings for products you use.

Learn how to reset or move OneDrive by unlinking and re-linking your PC.

Wenn Sie auf einem PC mit Windows arbeiten und möchten, dass die Apps und Inhalte von einem anderen Gerät auf Ihrem PC-Bildschirm angezeigt werden, sollten Sie den Bildschirm dieses Geräts spiegeln oder auf Ihren PC projizieren.

In Windows, having a camera and microphone as part of your device lets you make Teams video calls, take pictures, record videos, and more. Many apps and services request and use the camera or microphone, and Windows settings give you control over which apps can use your camera or microphone.

Find the information you need to import to or exporting from Outlook, whether you're using Office 365, Outlook 2016, or a Mac.

To change your profile picture in Microsoft Teams, click your existing profile picture and select the camera icon.

Find out how to submit a request for a refund for a purchase of digital Xbox content.