Windows Security is pre-installed on Windows 10 and ready for you to use at any time.

Learn about what effect closing a Microsoft account might have on your other apps and services.

Get to know your way around Windows 11, from where to search to how to stay organized. Watch the video and read tips about new features.

Learn how to troubleshoot when the camera is not working in Windows or you see errors 0xA00F4244 or 0x200F4244.

Add voting buttons to a message so that recipients can vote; results are tracked automatically in Outlook.

Microsoft's products and services work best if you use the same language and region across all your devices, and in all of your app and Store settings.

Learn how to sign in and create app passwords for Microsoft apps and devices that don't support two-step verification.

修复 Windows 中的声音或音频问题; 设置 Microsoft 新式无线耳机; 在 Microsoft Teams 中使用 Microsoft 新式无线耳机; 在 Microsoft Teams 中使用 Microsoft 新式 USB-C 耳机

Learn how to view your PC information on Windows with Microsoft Support's step-by-step guide.

Learn how to use antivirus protection in Windows Security to protect your Windows PC against malware, viruses, and other threats.