Description of Office customer support policy which can differ depending on the product owned.

Learn how to download, install, and configure additional language packs for your version of Windows.

Se não for possível entrar na conta de email do Outlook.com, Hotmail, Live ou MSN, ou se não souber como entrar ou sair, confira algumas soluções.

本文介绍如何获取最新版本的 DirectX 以启用系统上的游戏和多媒体应用程序。

How to calculate the number of days, months, or years between two dates using the DATEIF function in Excel.

Use System restore to make restore points when you install a new app, driver, or Windows update, and when you create a restore point manually. Restoring won’t affect your personal files, but it will remove apps, drivers, and updates installed after the restore point was made. To go back to a restore point:

How to select and delete a page in Word that contains text, graphics, or empty paragraphs.

How to recall and/or replace an email message you sent by using Microsoft 365 and your built-in Exchange Server account.

Learn how to personalize a Windows lock screen with a background photo, slideshow, or app notifications.

Use your Microsoft account to sign in to Microsoft services like Windows, Microsoft 365, OneDrive, Skype, Outlook, and Xbox Live.