This article describes a problem with CD or DVD drives not work, or is missing, or not recognized after installing or uninstalling programs.

Find out how Microsoft uses activity history data to provide personalized cross-device experiences and to help improve its products and services.

Learn how to remove malware from your PC. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.

Access, download, or run the Surface app and the Surface Diagnostic Toolkit to help find and solve Surface problems.

KB5025885: How to manage the Windows Boot Manager revocations for Secure Boot changes associated with CVE-2023-24932

This article describes update 5001998 for Microsoft Outlook 2016 that was released on October 5, 2021. Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016.

Find out how to stop Windows Security from alerting you about or blocking a trusted file, file type, or process, by adding it to the exclusions list.

Summary. Windows includes a tool called Microsoft System Information (Msinfo32.exe). This tool gathers information about your computer and displays a comprehensive view of your hardware, system components, and software environment, which you can use to diagnose computer issues.

Learn how to block someone or add email addresses to the safe senders list in Outlook on the web.

Training: Learn how to get up and productive quickly with this Microsoft Teams Quick Start. Sign in to Teams, select Teams and Channels, reply to conversation threads, @mention someone, use emojis and stickers, and ask T-Bot questions.