Learn how to turn on Bluetooth and pair various devices with your PC, such as keyboards, mice, phones, speakers, and more. Find out how to use Swift Pair, fix Bluetooth problems, and adjust Bluetooth pairing settings in Windows 11 and earlier versions.

Learn how to create and use app passwords for devices that don't support two-step verification. App passwords are long, randomly generated passwords that you provide only once instead of your regular Microsoft account password.

Find solutions for common issues and errors when installing Microsoft 365, Office 2021, 2019, or 2016 on your PC or Mac. Learn how to download, reinstall, activate, update, and uninstall Office products.

如果这是你第一次安装 Microsoft 365，则可能需要先执行一些设置步骤。展开下面的 “了解详细信息”部分。 但是如果是重新安装 Microsoft 365，且已兑换了产品密钥并拥有与 Microsoft 365 相关联的帐户，请转到“登录并安装 Office”的部分。

Learn how to download and install Microsoft 365 or Office 2019, 2016, or 2013 on your PC or Mac. Find out how to redeem your product key, activate your software, and troubleshoot common issues.

Learn how to update your Xbox gamertag on the web, your Xbox console, and your Windows device. Find out the rules, fees, and tips for creating a new gamertag that reflects your identity on the Xbox network.

Learn how Xbox monitors and enforces verbal and nonverbal harassment on the network, and what to do if your gamertag or real name is removed. Find out what is considered harassment, inappropriate content, and how to appeal a suspension.

Learn how to use the improved copy and paste feature in Microsoft Edge to share web URLs as hyperlinked titles or plain text. Find out how to change the default behavior and access the settings page.

Learn how to fix common problems with verification codes for Microsoft account sign-in. Find out how to use passwordless solutions, update security info, or contact support.

Learn how to access and configure device security features in Windows 10 and 11, such as core isolation, memory integrity, security processor, secure boot, and more. Find out how to improve your device security and troubleshoot issues with hardware and software.