If your system is asking you for your BitLocker recovery key, the following information may help you locate your recovery key and understand why you're being asked to provide it. Important: Microsoft support is unable to provide, or recreate, a lost BitLocker recovery key.

Find the information you need to build, run, and grow your small business with Microsoft 365. Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.

Fix your audio drivers. Hardware problems can be caused by outdated or malfunctioning drivers. Make sure your audio driver is up to date and update it if needed. If that doesn't work, try uninstalling the audio driver (it will reinstall automatically).

Check cables and reset your power supply unit: Disconnect the charger from your Surface, unplug the power cable from the power outlet in the wall, and then disconnect any USB accessories. Wait at least 10 seconds. This gives the charger time to reset.

If you want to track your Microsoft Rewards order after you redeem an award, sign in to the Rewards page with your Microsoft account, select Redeem and then select Order history. On the Order history page, find your order and then look under Status. Open Rewards dashboard.

Manage background activity for apps in Windows. Some apps let you manage background activity, which determines what they can do when they’re in the background and not actively in use. Apps that can run in the background can send and receive notifications, sync information, and stay up to date.

如果你是 Xbox Game Pass Ultimate 会员，你将自动在主机上获得 EA Play 订阅会员资格，并可通过主机上的 Xbox Game Pass 体验浏览和下载 EA Play 游戏。. 如果你是 Xbox Game Pass Ultimate 或 PC Game Pass 会员，则需要关联你的 EA 和 Xbox 帐户，然后确保你的电脑上安装了 EA Desktop ...

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.

如果你使用 Marketplace Pass 包创建世界，则你的世界可能无法跨设备播放，除非你有可用的 Minecraft Realms Plus 订阅。. Minecraft Marketplace Pass 可用于适用于电脑（Windows 10 或更高版本）的 Minecraft（我的世界）基岩版和 Xbox Series X|S。. 有关 Minecraft Marketplace Pass 的详细 ...

Alternatively, you can go to Settings > Update & Security > Troubleshoot > Additional troubleshooters, and then select Windows Media Player to run the troubleshooter. Repair or reset Windows Media Player: If Windows Media Player is not working properly, you can try to repair or reset it to its default settings.