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 ...

Select Start > Settings > System > Display > Advanced display . Next to Choose a refresh rate , select the Dynamic option. ( Note: This option is only available on supported hardware. If you don’t see the Dynamic option, then your hardware doesn’t support DRR.) If you want to disable DRR and use a fixed refresh rate, you can select a ...

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.

获取有关损坏或不可读代码的帮助. 如果无法读取数字代码的全部 25 个字符，则需要通过联系 aka.ms/contactxboxsupport 请求替换代码。. 联系支持人员时，请确保提供购买证明、序列号和损坏代码的图片。. 注意 请拍摄卡片正面和背面的图片，或拍摄打印代码的收据 ...

Multiply numbers in different cells by using a formula. You can use the PRODUCT function to multiply numbers, cells, and ranges.. You can use any combination of up to 255 numbers or cell references in the PRODUCT function. For example, the formula =PRODUCT(A2,A4:A15,12,E3:E5,150,G4,H4:J6) multiplies two single cells (A2 and G4), two numbers (12 and 150), and three ranges (A4:A15, E3:E5, and H4 ...

获取应用. 若要在 Xbox 主机上安装应用，请执行以下操作：. 按“Xbox”按钮 打开指南，然后转到“Microsoft Store”。. 选择“搜索”，在框中输入“insider”，然后选择“Xbox Insider 捆绑包”。. 选择“获取”或“安装”。. 此操作会安装“Xbox Insider Hub”和“报告问题 ...

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

Open your order history. To see past orders and past purchases, use the Show and Ordered within filters. To print an order or its tax invoice, select Order details > Print / Tax Invoice. If you have a question about your orders, select Order help. If you bought a physical item from the Microsoft Store, and we're shipping it to you, you can ...

对于印度客户：如何使用在线钱包付款？. 在线钱包是一种付款方式，你可以使用此付款方式快速方便地购买 Skype 点数和其他 Skype 产品，无需每次购买时提供你的财务信息。. 这是 Skype 点数和套餐的多种支付方法之一。. 若要使用在线钱包，则你的帐单地址必须 ...

If you see a Let's get started screen with options to try, buy, or activate Office, this means that Office is installed on your new PC as a 1-month trial of Microsoft 365 Family. You won't receive a product key from your PC manufacturer unless you paid for an Office product key card. Instead, you can start a trial of Microsoft 365 Family, or buy Office.