Learn how to improve Windows PC performance if your device is running slowly.

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.

Learn how to recover deleted items, such as email, contacts, calendar appointments, and tasks in Outlook.

About digital signatures and certificates in Office, and buying a digital certificate from a certificate authority or create your own.

Get steps for how to change screen brightness in Windows.

Pin, remove, and customize in Quick access. By default, File Explorer opens to Quick Access. You can set a folder to show up in Quick access so it'll be easy to find.

To change appearance, select Appearance and make the changes you want to your default theme, zoom, toolbar, and fonts.

We’re continually releasing updates to our application, based on customer feedback. Check out What's New in the latest updates for Skype on desktop and mobile.

This article tells you how to add email accounts to the Mail and Calendar apps so you can start sending and receiving email and creating and managing events.

PC に Office 2013 または Office for Mac 2011 をインストールする方法について説明します。