Export Outlook email, contacts, and calendar to move them to another computer or so that you can make a backup of your information.

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

Learn how to install Windows 7 Service Pack 1 (SP1). Includes info about how to get the download, requirements, and more.

Windows PC で作業していて、別のデバイスのアプリとコンテンツを PC の画面に表示する場合は、そのデバイスの画面をミラーリングするか、PC に投影します。

要約. この更新プログラムは、実行中の PC 上の Windows Recovery Environment (WinRE) に安全な OS 動的更新プログラム を自動的に適用し、攻撃者が WinRE を使用して BitLocker 暗号化をバイパスできる可能性のあるセキュリティの脆弱性に対処します。 詳細については、「CVE-2024-20666」を参照してください。

Learn how Smart charging in Windows can help your battery last longer over time.

See what's new in recent Windows 10 and Windows 11 updates, including a chat from the taskbar, widgets, snap groups, and more.

Create an ISO file for Windows 10. Unlike in previous versions of Windows, you’ll need to use the media creation tool to create an ISO file to install Windows 10.

Use VLOOKUP, HLOOKUP, and other functions like INDEX and MATCH to search for and find data based on values you enter. This article gives you a quick VLOOKUP refresher, then links to more.

If your computer is showing a black or blank screen in Windows, these troubleshooting tips could help get your system back up and running.