注: [アカウント] が表示されない場合、または既にファイルまたはドキュメントを開いている場合は、メニューから [ファイル] を選び、左側の一覧から [アカウント] または [サポート] を選択します。 [製品情報] の下に、Office 製品の名前と、場合によっては完全なバージョン番号が表示されます。

Microsoft 365 is a subscription service that makes sure you always have the most up-to-date modern productivity tools from Microsoft. There are Microsoft 365 plans for home and personal use, as well as for small and midsized businesses, large enterprises, schools, and non-profits.

In Outlook, the message recipient can decline to send read receipts. There are other scenarios where read receipts are not sent, such as if the recipient's email program doesn’t support read receipts. There is no way to force a recipient to send a read receipt. Select a tab option below for the version of Outlook you're using.

Because this mode is streamlined for tighter security, the Virus & threat protection area has fewer options. But don't worry—the built-in security of this mode automatically prevents viruses and other threats from running on your device, and you'll receive security updates automatically. For more info, see Windows 10 or 11 in S mode FAQ.

Windows 8.1以前のバージョンを実行している場合、または PC がWindows 11実行するための最小システム要件を満たしていない場合は、新しいWindows 11 デバイスに移行することを検討してください。 ニーズに合った PC を見つけます。 . ファイルやお気に入りを転送するように Microsoft アカウントを設定 ...

Important: Before trying any of the solutions below, make sure you back up your personal files. You can back up your Windows PC, or insert a USB drive and use File Explorer to drag and copy important files to the USB drive.If you’re signing into Windows with a Microsoft account, your system settings will be automatically restored after updating, once you’re connected to the internet.

If you don’t see the Recall This Message command, you probably don’t have an Exchange account or the feature isn’t available within your organization. You can't recall a message that's protected by Azure Information Protection. You can't recall a message in Outlook on the web.

That verification method isn’t working right now: Sometimes the block may be tied to the verification method you are using.Try using another verification method connected to your account. For example, if you are using SMS to verify yourself and are hitting a block, try using an alternate email that is connected to the account to receive your authorization code.

It doesn't contain your personal files, settings, or programs. Need more options for creating a recovery drive? For Windows 7, see Create a system repair disc. For Windows 8.1, see Create a USB recovery drive. To download Windows 10 installation media, see Recovery options in Windows.

If these steps didn't work, or you have other account sign in issues, use our Sign-in helper tool. Microsoft account security info & verification codes. How to help keep your Microsoft account safe and secure. Change or reset your Windows password. Accessing the account of someone who has died