Find your product key to activate Windows. A product key is a 25-character code that's used to activate Windows and helps verify that Windows hasn't been used on more PCs than the Microsoft Software License Terms allow.

Find out how to change privacy settings for your camera and microphone in Windows.

If you are having trouble with your microphone features, the following information can help you troubleshoot and resolve issues.

In Windows 11, apps don't automatically get added to your desktop. Learn how to pin apps to your desktop or taskbar in Windows 11 or Windows 10.

Learn how to manage extensions in Microsoft Edge, including adding, disabling, or removing them as needed.

Learn how to install Windows 7 Service Pack 1 (SP1). Includes info about how to get the download, requirements, and more.

The Microsoft Teams web app works for most desktop browsers, including Chrome, Firefox, and Internet Explorer.

Obtenga información sobre cómo instalar, reinstalar o activar Microsoft 365 u Office 2019 en un equipo PC o Mac.

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

Learn how to use a health report in Windows Security to manage your device performance and keep your device secure.