Learn how to extend your PC's battery life using battery saver and other power-saving tips for Windows.

Get answers to some basic questions about what two-step verification is, and how to set it up and use it to help keep your Microsoft account more secure.

Windows Update also installs the latest software updates to improve the reliability of Windows, which includes new drivers for your hardware. If you have devices running an unsupported version of Windows, we recommend upgrading them to a more current, in-service, and supported Windows release.

執行 Windows Telephony Application Programming Interfaces (TAPI) 的系統。 執行 Windows XP Professional Service Pack 3 和所有 Windows Server 2003 和 Windows Server 2008 支援版本的系統，執行 IIS 或 IIS 網頁伺服器而可讓使用者上傳程式碼的系統。 授與非信任使用者帳戶存取權限的 SQL Server 系統。

If your Bluetooth device connects to Windows but you hear no sound, experience low audio quality, or face frequent disconnections, it can disrupt your audio experience. This issue often arises due to incorrect settings, outdated drivers, or compatibility limitations. Try the following troubleshooting steps to resolve the issue:

Support for Windows Vista Service Pack 1 (SP1) ends on July 12, 2011. To continue receiving security updates for Windows, make sure you're running Windows Vista with Service Pack 2 (SP2). For more information, refer to this Microsoft web page: Support is ending for some versions of Windows. Summary Microsoft has released an update for the Windows Telephony Application Programming Interface ...

Whether you need to connect to Windows 365, Azure Virtual Desktop, Remote Desktop, Remote Desktop Services, or Microsoft Dev Box, the Windows app simplifies the process, allowing you to manage and utilize these resources from a single, intuitive app. Download the Windows app from the Microsoft Store (recommended), or through this direct link.

Battery Optimization interrupting connection For some Android devices, your Battery Optimization settings may interrupt your connection. We recommend turning it off for the Link to Windows app on your Android device.

Windows Secure Boot certificates expiring in 2026 Since Windows introduced Secure Boot support, all Windows-based devices have carried the same set of Microsoft certificates in the KEK and DB. These original certificates are nearing their expiration date, and your device is affected if it has any of the listed certificate versions.

Ways to sign in Use Set up Windows Hello to enable to sign in using face recognition, a fingerprint or a PIN, instead of a password. In this section you can also improve facial recognition or remove it. You can sign in to your account with a physical security key. Learn more. Additional settings Sign in with an external camera or fingerprint reader. If turned on, you disable Enhanced Sign-in ...