Learn how to open and run DxDiag.exe on Windows to collect device information and troubleshoot DirectX sound and video issues.

How to use a PivotTable in Excel to calculate, summarize, and analyze your worksheet data to see hidden patterns and trends.

This article is for Outlook.com. If you're using Outlook for Windows, see Fixes or workarounds for recent issues in Outlook for Windows.. If you're having problems accessing Outlook.com, you can see the status of Microsoft Office Online Services at the Service Health portal.. If you're having problems sending or receiving email, read how to Fix Outlook.com email sync issues.

Learn how to run a disk cleanup in Windows including deleting temporary and system files to free up disk space.

Learn how to install the latest version of DirectX to enable games and multimedia applications on your system.

If your purchase of Office or Microsoft 365 came with a product key, you enter your product key on one of the websites listed below for your product.

Explore your options and settings when you install add-ins.

Learn how to use Remote Desktop in Windows. On your Windows, Android, or iOS device: Open the Remote Desktop app (available for free from Microsoft Store, Google Play, and the Mac App Store), and add the name of the PC that you want to connect to (from Step 1). Select the remote PC name that you added, and then wait for the connection to complete.

Get an overview of SharePoint. Learn about sites, lists and libraries, permissions, content types and workflows. In addition, read about some of the social features in SharePoint.

Important: Steps may be different between new and classic Outlook for Windows. To determine which version of Outlook you're using, look for File on the ribbon.If there's no File option, follow the steps under the New Outlook tab. If the File option appears, select the tab for Classic Outlook.