Copilot is available in the Home tab of Word, Excel, PowerPoint, and Outlook on the web if you are a Copilot subscriber. If you also have a Microsoft 365 subscription that includes the Microsoft 365 desktop apps then you should find Copilot available in those apps as well.

Office 2016 および Office 2019 のサポートは、2025 年 10 月 14 日に終了します。 Office 2016 アプリと Office 2019 アプリはすべて引き続き機能しますが、セキュリティ リスクにさらされる可能性があります。 新しいバージョンの Office にアップグレードしてください。

Are you tired of constantly forgetting your passwords and having to type them in every time you want to access your favorite websites and applications? Say hello to passkeys! Passkeys provide a more secure and convenient way to sign in. With passkeys, you can use Windows Hello to sign in with a PIN, facial recognition, or fingerprint, making the authentication process faster and more ...

If it's hard to see what's on the screen, apply a color filter. Color filters change the color palette on the screen and can help you distinguish between things that differ only by color.

トレーニング: Microsoft の個人、職場または学校のアカウントで Office.com にサインインします。 その方法については、このビデオをご覧ください。

获取解决 Windows 上 Game Bar 问题的疑难解答提示，帮助用户快速排除故障并恢复功能。

The April 25, 2025 update for Windows 11, version 24H2 includes security and cumulative reliability improvements in .NET Framework 3.5 and 4.8.1. We recommend that you apply this update as part of your regular maintenance routines. Before you install this update, see the Prerequisites and Restart requirement sections. Summary Security Improvements There are no new security improvements in this ...

Create a site Select + Create site on the SharePoint start page. Select whether you'd like to create a Team site or a Communication site. Select the template that you want to use to create your new site. Select Use template to begin creating a site from your selected template. Enter the name for the site. When you start to enter a name for the site, other fields appear. You can enter a site ...

You can access another person's mailbox if you have been granted the appropriate permissions to their mailbox. Permissions can range from read-only to creation, deletion, and allowing responses to messages.

Send S/MIME or Microsoft Purview encrypted emails in Outlook using a work or school account with a qualified Microsoft 365 subscription.