Microsoft security help and learning
Get security info and tips about threat prevention, detection, and troubleshooting. Including tech support scams, phishing, and malware.
Contact Us - Microsoft Support
Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.
Windows 10 Users Can Still Get Free Security Updates. Here's How
Dec 31, 2025 · Windows 10 Users Can Still Get Free Security Updates. Here's How Microsoft no longer officially supports Windows 10, so do this if you want to keep using your older PC securely.
Microsoft end-of-support products in 2026: Windows, Office
6 days ago · Microsoft will discontinue support for numerous products throughout 2026, spanning operating systems, productivity software, database platforms, and server technologies. …
Microsoft Support
Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows 11, Surface, and more.
Customer service phone numbers - Microsoft Support
Dec 5, 2025 · This page provides support links for home users and support phone numbers for business users.
Office 2021, Windows 11 24H2, and other Microsoft products
6 days ago · Office 2021, Windows 11 24H2, and other Microsoft products reach end-of-life in 2026 Microsoft is retiring more software – and security updates with it By Daniel Sims January 5, 2026 at …
Contact Microsoft Security Sales
Call Microsoft customer service using the phone number for your country or open a Microsoft 365 support ticket. Chat or speak with Microsoft Security sales specialists to learn more about Microsoft …
Help protect my device with Windows Security - Microsoft Support
Find out how Windows Security can help keep your PC safe from malicious software and viruses.
Contact Microsoft Defender support - Microsoft Defender XDR
Nov 3, 2025 · Microsoft Defender support process is designed to help you find solutions to common problems and submit support cases to the Microsoft support team.