Learn how to check what version of Office your using. Find your product name and version number of Office apps.

You’ll see your Office version and information under Product information, on the right side of the window. If you don’t see File>Account or File>Help, you might be using an older version of Office.

Learn how to check what version of Office your using. Find your product name and version number of Office apps.

Learn how to update Microsoft Office on PC and troubleshooting tips for installing Office updates.

Learn what version of Outlook you're using, and get link for setup, how to import and export email, contacts, and calendar.

了解如何檢查您正在使用的 Office 版本。 尋找您的產品名稱和 Office 應用程式版本號碼。

When you turn on automatic updating for Windows through Microsoft Update, you'll also get Office updates for earlier versions of Office, such as Office volume license installs.

Oct 14, 2025 · Learn how to find basic information about your Windows device, including the device name, version of Windows, hardware details and avaialble storage space.

您會在視窗右側的 [ 產品資訊] 底下看到您的 Office 版本和資訊。 如果您沒有看到 [檔案>帳戶 ] 或 [ 檔案>說明]，表示您使用的可能是舊版 Office。

If you're trying to access your email, calendar, and contacts at Outlook.com (or Hotmail.com), see How to sign in or out of Outlook.com. If you're not sure which version of Outlook you're using …