ただし、Microsoft 365 を再インストールするときに、既にプロダクト キーを取得していてアカウントに Microsoft 365 を関連付けている場合は、「 サインインして Office をダウンロードする 」セクションを参照してください。

Protect your Android, iPhone, Mac, and Windows devices from threats by installing Microsoft Defender. Download Microsoft Defender on your devices either by:

Learn how to switch out of S mode to install apps from outside of the Microsoft Store or to upgrade to Windows 11.

Windows Security is pre-installed on Windows 10 and ready for you to use at any time.

Learn how to navigate Windows using keyboard shortcuts. Explore a full list of taskbar, command prompt, and general Windows shortcuts.

Wenn Sie sich bei Ihrem Outlook.com-, Hotmail-, Live- oder MSN-E-Mail-Konto nicht anmelden können oder nicht sicher sind, wie Sie sich an- oder abmelden können, finden Sie hier einige Lösungen.

Fresh Start in Windows 10 lets you perform a clean reinstallation and update of Windows while keeping your personal data and most Windows settings intact.

Before proceeding, you should know which version of Visio you will be using: the desktop app or the web-app version. Only some versions of Visio include the desktop app.

Learn how to use the Settings app to view and change display settings in Windows.

Most tools and options in Microsoft Edge are available when you select Settings and more > Settings.