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.

Learn how to get Outlook set up to work with Microsoft 365, POP, IMAP, or Microsoft Exchange-based email accounts.

本文介绍如何获取最新版本的 DirectX 以启用系统上的游戏和多媒体应用程序。

Windows 10 lets you quickly check your network connection status. And if you're having trouble with your connection, you can run the Network troubleshooter to try and fix it.

Find answers to frequently asked questions about Office 2021 and Office LTSC for Windows and Mac on the official support page.

Microsoft Edge を使用すると、Web を参照するときにパスワードを簡単に保存できます。 デスクトップまたはモバイル デバイスの Edge ブラウザーで新しいパスワードを入力すると、ユーザー名とパスワードを記憶するかどうかを Microsoft Edge から確認するメッセージが表示されます。

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

Find out how to back up your apps, files, photos, and preferences on your Windows PC with File History and other tools.

Learn how to connect to a Wi-fi network in Windows and manage your current network connections.

If Office activation fails, you'll see Unlicensed Product or Non-commercial use / Unlicensed Product in the title bar of your Office apps, and most features of Office are disabled. To restore all features of Office, you'll need to fix the problem that's causing activation to fail.