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Finding your BitLocker recovery key in Windows. Microsoft security help and learning. Having a backup copy of your BitLocker recovery key helps to prevent serious issues later. It takes less than a minute to back up your key and this article will show you how.

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.

With a USB-C connection, you can charge your Windows 11 PC, and you can also connect to other USB Type-C devices such as mobile phones, docking stations, display adapters, and other devices that have a USB-C port. Unfortunately, some combinations of hardware and software may cause problems. If this happens, you may get a notification that there ...

兌換禮品卡與代碼，以購買 Xbox 並擴充您的 Xbox 訂閱。. 代碼的長度為 25 個字元 (包含數字和英文字母)，並採用 5x5 格式，即以五個字元為一組，共五組。. 代碼可以是您向 Microsoft 或信任的零售商購買的數位或實體卡片。. 如果您的帳戶有未付餘額，或是付款 ...

Connect to a Wi-Fi network in Windows. Whether you're at home, work, or out and about, chances are you'll find a Wi-Fi network that you can connect to for internet access. Select the Network, Sound, or Battery icons ( ) on the far right side of the taskbar to open quick settings.

If you pre-ordered a game and want to cancel, you can do so up to 10 days before the game launches at: Order history. After this time, you may be billed, and you’ll need to request a refund to cancel your order. For more info about digital game pre-orders, see: Pre-order Xbox digital games in the Microsoft Store.

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 Hardware problems can be caused by outdated or malfunctioning drivers.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).

To turn Microsoft Defender Firewall on or off: Select Start , then open Settings . Under Privacy & security , select Windows Security > Firewall & network protection . Open Windows Security settings. Select a network profile: Domain network, Private network, or Public network.

If you need to reset your Microsoft account password, see Change your Microsoft account password . Learn how to reset your PIN if you aren't signed in to Windows and having trouble using your PIN.