许多软件程序在安装时要求用户输入产品^(Product)密钥。它包含字母和数字，是不同长度的字母数字代码组合。密钥通过向软件开发人员保证他们的软件副本是合法购买的并且不是假冒产品来验证产品的合法性。

话虽如此，如果买家不了解不同类型的 Microsoft 产品密钥^{(types of Microsoft Product Keys )}及其含义，他可能会感到困惑。阅读完整的帖子以了解这些键之间的区别。

Microsoft 产品密钥的类型

以下是Microsoft 产品^{(Microsoft Product)}密钥的类型：

1. CUS
2. 麦
3. 知识管理系统
4. VL 1
5. RTL
6. STA
7. OEM
8. AAA
9. AAL
10. AAM
11. AV1
12. AV2。

让我们在简要说明的同时介绍这些产品密钥。

1] CUS

更为人所知的是自定义密钥^{(custom key)}，它需要特殊操作才能激活或安装。自定义^(Custom)密钥提供特殊操作或信息来激活或安装产品。

2]麦

批量MAK（多次激活密钥^{(Multiple Activation Key)}）产品密钥是不可转售的批量许可证密钥。它们由组织发布，用于以某种方式与组织相关联的客户端计算机。它们用于激活特定数量的设备。该计数已预先配置为Microsoft和Enterprise之间的交易。

3] 知识管理系统

企业获得了KMS（密钥管理服务^{(Key Management Service)}？）批量许可密钥，他们需要使用该密钥来配置使用 Microsoft 的软件许可服务^{(Software Licensing Service)}的内部服务器。

阅读^(Read)：什么是 KMS 和 MAK 批量许可密钥？

4] VL 1

这是VA 1.0密钥。这些是多个激活密钥，例如MAK。

5] RTL

零售产品密钥是客户在购买完整包装产品^{(Full Packaged Product)}( FPP ) 时收到的东西，即从零售商处或通过Microsoft Store在线购买的盒装^{(Microsoft Store)}Windows副本。

阅读^(Read)：如何判断 Windows 10 许可证是 OEM、零售还是批量？

6] STA

它是指为不需要激活的产品提供的静态激活密钥。它们可用于任意数量的安装。此设置密钥主要用于绕过激活步骤。

7] OEM

OEM Key启用特定计算机的单个或多个激活。它是在制造过程中安装在主板BIOS上的数字产品密钥 ( DPK )。Windows会在计算机第一次连接到Internet时自动激活。

8] AAA

此零售密钥仅允许单次激活。

9] AAL

它是 AA 程序的实验室使用密钥，允许多次激活。

10] AAM

这些是 AA 计划客户的多个激活密钥。

11] AV1

为 AA 程序启用多个安装。

12] AV2

此密钥适用于学术联盟^(Alliance)计划。

阅读^(Read)：如何检查 Windows 密钥是正版还是正版？

Microsoft产品密钥旨在与您已经拥有的硬件、软件和外围设备兼容。此外，始终启用的更新可帮助您在Microsoft 产品^(Products)的受支持生命周期内获得最新功能和安全性。

What do the different types of Microsoft Product Keys mean?

Many software programs at the time of installation require usеrs to enter a Рroduct key. It contains both letterѕ and numbers, an alрhanumeric code combination of varying lengths. The key verifies the legitimacy of the product by assuring software deνelopers that the copy of their software was legally purchased and is not a counterfeit product.

Having said that, a buyer can be left confused if he does not have an understanding of different types of Microsoft Product Keys and what do they mean. Read the complete post to know the difference between these keys.

Types of Microsoft Product Keys

Following are the types of Microsoft Product keys:

1. CUS
2. MAK
3. KMS
4. VL 1
5. RTL
6. STA
7. OEM
8. AAA
9. AAL
10. AAM
11. AV1
12. AV2.

Let’s cover these product keys alongside their brief description.

1] CUS

Better known as a custom key, it requires special actions to activate or install. Custom keys offer special actions or information to activate or install the product.

2] MAK

Volume MAK (Multiple Activation Key) product keys are volume license keys that are not-for-resale. They are issued by organizations for use on client computers associated in some way with the organization. They are used to activate a specific number of devices. The count is pre-configured as a deal between Microsoft and Enterprise.

3] KMS

Enterprise is given KMS (Key Management Service?\) Volume Licensing key using which they need to configure an in-house server using Microsoft’s Software Licensing Service.

Read: What are KMS and MAK Volume Licensing Keys?

4] VL 1

This is a VA 1.0 key. These are multiple activation keys, like a MAK.

5] RTL

The retail product key is something a customer receives when he purchases a Full Packaged Product (FPP), a.k.a a boxed copy of Windows from a retail merchant or online via the Microsoft Store.

Read: How to tell if Windows 10 license is OEM, Retail, or Volume?

6] STA

It refers to static activation keys provided for products that do not require activation. They can be used for any number of installations. This setup key is mainly used to bypasses the activation step.

7] OEM

OEM Key enables single or multiple activations om specific computers. It’s a digital product key (DPK) that is installed on the motherboard BIOS during the manufacturing process. Windows activate automatically the first time the computer is connected to the Internet.

8] AAA

This retail key permits single activation only.

9] AAL

It’s a lab use key for AA programs and allows multiple activations.

10] AAM

These are multiple activation keys for AA program customers.

11] AV1

Enables multiple installations for AA programs.

12] AV2

This key is for Academic Alliance programs.

Read: How to check if the Windows Key is Genuine or Legit?

Microsoft product keys are designed to be compatible with the hardware, software, and peripherals you already own. Moreover, always-enabled updates help you get the latest features and security for the supported lifetime of your Microsoft Products.

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