Use the System File Checker tool to repair missing or corrupted system ...
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.
How to use the PC Health Check app - Microsoft Support
How to open PC Health Check. In Windows, use Search on the taskbar to search for “PC Health Check,” then select it from the list of results. If a PC Health Check update is available, you can quickly install it for the latest version.
Redeem a gift card or code to your Microsoft account
To redeem a Microsoft gift card, Xbox download code or token, select Redeem code below, sign in, and enter or paste the code or token value. Redeem Code. Tip: If you bought the wrong code, please contact the retailer.
Applies To:
Microsoft account dashboard
激活 Windows - Microsoft 支持
激活有助于验证你的 Windows 副本是否为 正版 ，并且未在超过 Microsoft 软件许可条款允许的设备上使用。. 播放视频时遇到问题？. 在 YouTube 上观看。. 激活 Windows 时遇到问题？. 首先，在“获取帮助”应用中尝试激活疑难解答。. 获取帮助可指导你完成解决大多数 ...
我无法登录到我的Microsoft帐户 - Microsoft 支持
如果无法登录到Microsoft帐户，大多数问题都可以通过登录帮助程序工具进行识别。. 该工具将要求你输入尝试登录时使用的电子邮件地址或移动电话号码，并检查你提供的详细信息。. 如果我们检测到你的帐户有问题，我们会告诉你需要执行哪些操作来解决问题 ...
Applies To:
Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2019 for Mac, Outlook 2016, Microsoft 365 for home, Outlook.com, GroupMe, Microsoft account dashboard, Microsoft Teams, Microsoft Teams personal, Microsoft To Do, OneDrive (home or personal), OneDrive for Mac, OneDrive for Windows, Outlook for Android, Outlook for iOS
解决适用于 Windows 的 Xbox 应用问题 | Xbox Support
更新 Windows. 按任务栏上的“开始”按钮 ，键入“设置”，然后选择“设置”。. 在 Windows 10 上，选择“更新和安全”。. 在 Windows 11 上，选择“Windows 更新”。. 在“Windows 更新”页面上，选择“检查更新”以查看是否有适用于设备的任何更新。. 在下载更新后 ...
Contact us | Xbox Support
Check here for the known game issues that we're currently tracking and find out what you can do about them. Need help with an Xbox console, an Xbox game, or Xbox network? Find out how to get in touch with us.
Which version of Windows operating system am I running?
Find operating system info in Windows 11. To find out which version of Windows your device is running, press the Windows logo key + R, type winver in the Open box, and then select OK. Here’s how to learn more: Select Start > Settings > System > About . Open About settings.
Finding your BitLocker recovery key in Windows - Microsoft Support
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.
查看你的 Microsoft 帐户的最近登录活动 - Microsoft 支持
你将看到你的 Microsoft 帐户在过去 30 天内的登录时间，以及任何特定于设备或应用的信息。. 有关常见问题的解答（包括如何返回到受入侵的帐户并保护或关闭帐户），请参阅 什么是“最近活动”页？. 如果你担心有人可能有权访问你的帐户，我们强烈建议 你 ...
Applies To:
Microsoft account dashboard