Learn how to update your device at update Windows. Use the Activation troubleshooter to resolve simple errors. For more info, see Try the Activation troubleshooter below. If you're still getting an error, check the list of error codes below and follow the suggested steps to resolve it.

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.

If you receive a message in Windows Security prompting you to update your security processor or TPM firmware, follow the steps in the "Recommended actions" section below. Note: In previous versions of Windows 10, Windows Security is called Windows Defender Security Center.

Error 0x8007045D or 8007045D occurs when you download your profile or an update or launch a game or app on your Xbox. Learn what to do if you see error code 0x8007045D or 8007045D when you try to download your Xbox profile or an update to your Xbox 360 console. Learn more.

Update Windows. Press the Start button on the taskbar, type settings, and then select Settings. On Windows 10, select Update & Security. On Windows 11, select Windows Update. On the Windows Update page, select Check for updates to see if any updates are available for your device.

解决方案 1：检查 Xbox 状态. 查看 Xbox 状态页面。. 如果看到任何服务警报，请展开服务，向下滚动到“通知”，然后登录以在服务启动并再次运行时接收消息。. Xbox 状态. 选择当前遇到问题的服务以展开，从而了解详细信息。. 在“通知”下，选择“登录 ...

There are three methods to which you can activate your product: Online via the internet, by telephone using our automated systems, and by a live support advocate. Online: When you begin activation, Windows will try to use your internet connection to activate online.

Fixes a problem in which you receive Stop error code 0xD1, 0x139, or 0x3B and random crashes, and cluster nodes go down in Windows Server 2012 R2 or Windows Server 2012.

尝试与在线好友玩“合作”或“对战”游戏时，可能会收到以下错误消息：. 不兼容的游戏版本. 游戏版本与主机的游戏版本不同. 此消息意味着你尚未更新到最新版本的《战争机器：终极版》。. 若要解决此问题，请返回到游戏的主菜单并通过以下方法之一同步 ...

Apps & features in Settings. Select the More icon next to the app you want to fix. Select the Advanced options link under the name of the app (some apps don't have this option). On the page that opens, select Repair if it's available. If it isn't available or doesn't fix the problem, select Reset.