Generally, if you bought a physical copy of Windows, the product key should be on a label or card inside the box that Windows came in. If Windows came preinstalled on your PC, the product key should appear on a sticker on your device. If you’ve lost or can’t find the product key, contact the manufacturer. To ensure your product key is ...

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

Follow these steps to automatically diagnose and repair Windows security problems by turning on UAC, DEP protection, Windows Firewall, and other Windows security options and features. Select the Download button on this page. In the File Download dialog box, click Run or Open, and then follow the steps in the Windows Security Troubleshooter.

查看此处以了解我们当前正在跟踪的已知游戏问题，并了解可以对其执行的操作。. . 查找有关《使命召唤：战争地带》2.0 的基本问题解答。. 注意 可以在 Microsoft Store 的游戏产品详细信息页，或此处的游戏开发人员网站查找特定于游戏的信息：. 《使命召唤 ...

Create Windows 11 installation media. On the Windows 11 software download page , select Create tool now and follow the instructions to install Windows 11. Warning: Microsoft recommends against installing Windows 11 on a device that does not meet the Windows 11 minimum system requirements.

当我从 Game Pass 移动应用安装游戏时，游戏为何不能下载？. 如果你从 Game Pass 移动应用将 Xbox Game Pass 游戏下载并安装到主机时遇到问题，请确保已在 Xbox 上启用远程安装，将其设置为主 Xbox，已选择“睡眠电源”选项，并连接到 Internet。. 若要启用远程安装：. 按 ...

此错误代码可能表示以下情形之一：. 你的银行未授权你的支付选项（例如，你的信用卡已过期、被冻结或者已被拒绝）。. 请联系你的信用卡公司或银行，确保正在使用的支付选项已激活，具有可用资金，且交易并未因为某些原因而受到阻止。. 如果用于为 Xbox ...

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. If you don't have PC Health Check installed, you can install it by going to https://aka.ms ...

Help with BitLocker. Finding product keys for Windows and Office. Other support. Help with a work or school account password. I need to talk to a customer support agent. Learn how to get Microsoft account help, troubleshoot sign in issues, keep your account secure, and manage your Microsoft account dashboard.