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 ...

If you forgot your Microsoft account password, follow these steps. Select Reset password below. Enter the email address, phone number, or Skype name you use to sign in then select Next. We'll ask where you'd like to get your verification code and select Next. Type the requested information and select Send code.

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

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From the next screen, select Troubleshoot > Advanced options > UEFI Firmware Settings > Restart to make changes. To change these settings, you will need to switch the PC boot mode from one enabled as “Legacy” BIOS (also known as “CSM” Mode) to UEFI/BIOS (Unified Extensible Firmware Interface). In some cases, there are options to enable ...

Security. Microsoft will never proactively reach out to you to provide unsolicited PC or technical support. If you receive a phone call claiming to be from Microsoft, or see a pop-up window on your PC with a fake warning message and a phone number to call and get your “issue” fixed, it’s better to be safe and not click any links or ...

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.

Open a service request in the Microsoft 365 admin center. This service is free. Get help and support, whether you're shopping now or need help with a past purchase. Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

Microsoft account Microsoft 帐户仪表板. 重要: 本文用于重置 忘记 的 Microsoft 帐户密码。. 如果要更改 已知 密码，请参阅 改为更改 Microsoft 帐户密码 。. 1.选择“忘记密码？. 如果“输入密码”窗口仍处于打开状态，请选择 “忘记密码？. 如果没有，请选择下面的“重 ...

添加验证 Microsoft 帐户登录的方法. 登录到 Microsoft 帐户的 “高级安全选项 ”页。. 登录. 选择“ 添加新的登录方式或验证 ”，然后选择接收安全代码的方式。. 注意: 无法添加 VOIP 号码作为登录或获取验证码的一种方式。. 我们会将安全代码发送到新号码或电子 ...