If you need help with Outlook.com, you can read our self-help content, or get support via email.

起動時に自動的に実行するアプリを追加する方法について説明します。

Learn about Windows 11 minimum system requirements and how to assess your upgrade eligibility.

Learn how to use and install mobile apps on your Windows 11 PC with the Windows Subsystem for Android™.

Learn how to access and manage your Windows sign in options. Use a password, Windows Hello, or a security key to unlock your device.

If you get an email about unusual activity on your Microsoft account, or if you’re worried that someone else might have used your account, go to the Recent activity page.You’ll see when your Microsoft account was signed in during the last 30 days, along with any device or app-specific info.

Erfahren Sie, wie Sie die App „PC-Integritätsprüfung“ verwenden, um die Leistung Ihres Geräts zu verbessern.

Learn how to type a letter online using Word for the web. Choose a letter template for online letter writing. Edit, send or print your letter online.

Learn how to change or reset your Windows password if you've forgotten or lost it.

Erfahren Sie, wie Sie ein Installationsmedium für die Installation oder Neuinstallation von Windows 7, Windows 8.1 oder Windows 10 erstellen.