Learn what PivotTable and PivotCharts are, how you can use them to summarize and analyze your data in Excel, and become familiar with the PivotTable- and PivotChart-specific elements and terms.

Before you begin filling out the form. The steps below will help guide you when filling out the account recovery form. It can be a lengthy process as it's designed to ask questions about your account that only you can answer.

See how to find things you've downloaded on your PC.

How to use the COUNT function in Excel to count the number of cells that contain numbers, and to count numbers within a list of arguments.

Get troubleshooting tips to fix problems with apps from Microsoft Store.

How to access and change the privacy settings in Windows 10 and 11.

Hotmail 現在為 Outlook.com。 瞭解如何登入以存取您的 Outlook.com、Hotmail、Live 或 MSN 電子郵件帳戶。

Describes how to investigate items in an Outlook Data File (.pst) and troubleshoot search issues.

Microsoft's products and services work best if you use the same language and region across all your devices, and in all of your app and Store settings.

Learn why it's important to have a backup, and how Windows Backup can help you keep your files and settings safe.