Windows 8.1 Update and Windows RT 8.1 Update (also known as KB 2919355) include improvements that make your favorite apps and settings easier to find and use, provide more familiar mouse and keyboard options, and update security and performance.Here’s what you need to know about installing this important update. Check to see if it’s already installed

Here are a few different ways to find help for Windows. Search for help - Enter a question or keywords in the search box on the taskbar to find apps, files, settings, and get help from the web.

Get help with Outlook for Windows, the Outlook app, Outlook.com, and more. Find training videos, how-to articles, and Outlook support content

Microsoft Copilot is an AI-powered digital assistant designed to help users with a range of tasks and activities on their devices. It can create drafts of content, suggest different ways to word something you've written, suggest and insert images, create PowerPoint presentations from your Word documents and many other helpful things.

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Find Microsoft Excel help and learning resources. Explore how-to articles, guides, training videos, and tips to efficiently use Excel.

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Reputation-based protection. Reputation-based protection leverages what Microsoft knows about various sites, services, and publishers, as well as threats we've seen in action to help protect you from malicious or potentially unwanted apps, files, or websites.

Windows 10, version 2004 and Windows Server, version 2004 update history; End of service statement; December 14, 2021—KB5008212 (OS Builds 19041.1415, 19042.1415, 19043.1415, and 19044.1415)

Windows 11 N: Select the Start button, then select Settings > Apps > Optional features.. Select View features next to Add an optional feature, and then select the Media Feature Pack in the list of available optional features.