Is it available on my device? BitLocker encryption is available on supported devices running Windows 10 or 11 Pro, Enterprise, or Education. On supported devices running Windows 10 or newer BitLocker will automatically be turned on the first time you sign into a personal Microsoft account (such as @outlook.com or @hotmail.com) or your work or school account.

[ブロックまたは許可] 設定を使います。この設定では、メール メッセージとドメインについて、信頼できるものとできないものを示すリストを作成して管理することで、不要な未承諾メール メッセージを制御できます。

注: Microsoft アカウントとして所有しているメール アドレスを使用するか、サインアップ時に [新しいメール アドレスを取得する] または [代わりにメールを使用する] を選択して新しいアドレスを作成できます。

Contact - Microsoft Support

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

If you see a Let's get started screen with options to try, buy, or activate Office, this means that Office is installed on your new PC as a 1-month trial of Microsoft 365 Family. You won't receive a product key from your PC manufacturer unless you paid for an Office product key card. Instead, you can start a trial of Microsoft 365 Family, or buy Office.

Invisible digital signatures in Word, Excel, or PowerPoint. An invisible digital signature, like a visible digital signature line, assures the authenticity, integrity, and origin of a document.

Learn how to update Windows to ensure your device operates smoothly and securely with the latest features.

Learn how to activate Office pre-installed on new Windows 10 PCs or with a new product key.

Microsoft support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows, Surface, and more.