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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.

Learn how to redeem a gift card, code, or Office product key and spend your balance at Microsoft Store online, on Windows, or Xbox.

Find your Windows settings in a snap! Select the Start button, then select Settings . From there, browse the categories or use search to find what you're looking for. Most apps have their own settings. In the app, select Settings to make app-specific changes. Learn how to make Windows easier to see and easier to hear .

光敏性癫痫警告. 极小部分人可能会在看到特定视觉图像（包括可能出现在视频游戏中的闪烁效果或图案）时出现癫痫症状。. 甚至没有癫痫史的人也可能具有一些可能会在玩视频游戏时导致“光敏性癫痫发作”的未确诊症状。. 如果你出现任何症状，请立即停止 ...

If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track. Run the System File Checker tool (SFC.exe) To do this, follow these steps:

Stream Xbox games directly on your smart TV — no console required.

Cast to a display from a Windows PC. You can wirelessly connect your PC to a TV, projector, or other kind of external display that supports Miracast. Turn on your TV, projector, or other display. If you're using a Miracast dongle or adapter, make sure it's plugged in to the display.

Cloud gaming on third-party services. Learn about cloud gaming on Xbox using your Android, iOS, or Windows device.

Change the screen resolution. Stay in, or open, Display settings. Open your Display settings. In the Display resolution row, select the list and choose an option. It's usually best to stick with the one that's marked (Recommended).