Learn how to tell if your Office software is genuine. To help determine if your Microsoft software is genuine, go to our How to Tell site for more information. Here you'll learn about authentic packaging, including what to look for with product key labels, and Certificate of Authenticity (COA), how to report counterfeit software, and find out what your shopping and licensing options are.

本文介绍 Microsoft Excel 中 SUBTOTAL 函数的公式语法和用法。. 说明. 返回列表或数据库中的分类汇总。 通常，使用 Excel 桌面应用程序中“数据”选项卡上“大纲”组中的“分类汇总”命令更便于创建带有分类汇总的列表。一旦创建了分类汇总列表，就可以通过编辑 SUBTOTAL 函数对该列表进行修改。

What is a Microsoft account used for? You need a Microsoft account to sign in to your Windows pc, Xbox console, or any of Microsoft’s products and services, including Office, Outlook.com, OneDrive, Xbox Live, Microsoft 365, Family Safety, Skype, Bing, Microsoft Store and MSN.

Get productive quickly with Microsoft 365 videos and tutorials. Explore Microsoft 365 training guides and tips to collaborate with anyone, anywhere.

Important Because changing your Microsoft account password is slightly different than resetting a forgotten password, this page does not cover the steps to reset your account password.

Solucionar problemas con accesorios Bluetooth. Si puedes activar Bluetooth pero tienes problemas para emparejar o usar un accesorio Bluetooth, prueba los siguientes pasos para solucionar problemas comunes de accesorios Bluetooth.

Upload files or folders to OneDrive. You can store over 300 types of files on OneDrive. With Microsoft Edge or Google Chrome: Select Add new > Files upload or Folder upload > Folder.

When you start a focus session, a focus timer will appear on screen. To use additional focus tools in the Clock app, expand the focus timer to get the full view of the Clock app.

如果你不希望第三方站点在你的电脑上存储 Cookie，则可以阻止 Cookie。 但是执行此操作可能会导致某些页面无法正确显示，或者可能会从站点收到一条消息，通知你需要允许 Cookie 才能查看该站点。

Repair or reset Windows Media Player: If Windows Media Player is not working properly, you can try to repair or reset it to its default settings.To do this, Select Start > Settings > Apps > Installed Apps.. Scroll down and click the three horizontal dots next to Windows Media Player and choose Advanced options, and click the Repair or Reset button. Note that resetting Windows Media Player will ...