Windows 10 と Windows 11 でユーザー アカウントを追加する方法について説明します。 アカウントを使用すれば、各ユーザーが個別のファイル、ブラウザーのお気に入り、プライベート デスクトップを持つことができます。

We've made it easier to keep Windows current with the latest features and improvements—and with fewer interruptions and restarts when you're using your PC the most.

Microsoft サポートにお問い合わせください。一般的な問題の解決策を見つけるか、サポート エージェントからサポートを ...

Troubleshooting: I don't see Automatic Replies. If you don't see Automatic Replies after selecting File, you're probably using a Gmail, Yahoo, or other POP or IMAP account that doesn't support the Outlook Automatic Replies feature.You can set up a rule that will reply to incoming messages—if you leave Outlook running while you're away.

Learn how to manage your mailbox size and keep it within a specific size limitation with Microsoft Support.

Learn how to remove malware from your PC. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.

In Outlook, the black color theme includes dark mode, which provides a black background (instead of white) for the message window. You can switch to a white background for the message window if you prefer.

Set Bing as the default search engine in your favorite browser to make every search count.

Windows 11, version 23H2 ; July 25, 2024—KB5040527 (OS Builds 22621.3958 and 22631.3958) Preview; July 9, 2024—KB5040442 (OS Builds 22621.3880 and 22631.3880)

If the Encrypt contents to secure data check box is selected, you have to have the certificate that was used to encrypt the file or folder to be able to open it. In this situation, you should obtain the certificate from the person who created or encrypted the file or folder, or have that person decrypt the file or folder.