• How To Find Product Key For Windows Server 2008 R2 Using Powershell Update
• How To Find Product Key For Windows Server 2008 R2 Using Powershell Reset
• How To Find Product Key For Windows Server 2008 R2 Using Powershell Commands

Applies To: Windows Server 2019, Windows Server 2016

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The following information outlines initial planning considerations that you need to review for Key Management Services (KMS) activation involving Windows Server 2019. For information about KMS activation involving operating systems older than those listed here, see Step 1: Review and Select Activation Methods.

If you are converting a computer from a KMS host, MAK, or retail edition of Windows to a KMS client, install the applicable setup key (GVLK) from the following tables. To install a client setup key, open an administrative command prompt on the client, type slmgr /ipk key and then press Enter. Recovering Server 2008 Product Key - posted in Windows Server: So my Server 2008 will no longer boot up and I lost the product key. Is there any reliable way I can recover the product key from the. Go to Control Panel System and then under Windows Activation click 'Change Product Key'. I know in Vista this is done from the system control panel. I would check there in Server 2008. There might be an icon down in the tray, or it will prompt you during logon.

KMS uses a client-server model to active clients. KMS clients connect to a KMS server, called the KMS host, for activation. The KMS host must reside on your local network.

KMS hosts do not need to be dedicated servers, and KMS can be cohosted with other services. You can run a KMS host on any physical or virtual system that is running Windows 10, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows 8.1, or Windows Server 2012.

A KMS host running on Windows 10 or Windows 8.1 can only activate computers running client operating systems.The following table summarizes KMS host and client requirements for networks that include Windows Server 2016, Windows Server 2019 and Windows 10 clients.

Note

• Updates might be required on the KMS server to support activation of any of these newer clients. If you receive activation errors, check that you have the appropriate updates listed below this table.
• If you are working with virtual machines, see Automatic Virtual Machine Activation for information and AVMA keys.

Note

Depending on which operating system your KMS server is running and which operating systems you want to activate, you might need to install one or more of these updates:

• Installations of KMS on Windows 7 or Windows Server 2008 R2 must be updated in order to support activation of clients running Windows 10. For more information, see Update that enables Windows 7 and Windows Server 2008 R2 KMS hosts to activate Windows 10.
• Installations of KMS on Windows Server 2012 must be updated in order to support activation of clients running Windows 10 and Windows Server 2016 or Windows Server 2019, or newer client or server operating systems. For more information, see July 2016 update rollup for Windows Server 2012.
• Installations of KMS on Windows 8.1 or Windows Server 2012 R2 must be updated in order to support activation of clients running Windows 10 and Windows Server 2016 or Windows Server 2019, or newer client or server operating systems. For more information, see July 2016 update rollup for Windows 8.1 and Windows Server 2012 R2.
• Windows Server 2008 R2 cannot be updated to support activation of clients running Windows Server 2016, Windows Server 2019, or newer operating systems.
• The KMS installed on Windows Server 2012 R2 must be updated in order to support activation of clients running Windows Server 2019. For more information, see November 27, 2018—KB4467695 (Preview of Monthly Rollup).

A single KMS host can support an unlimited number of KMS clients. If you have more than 50 clients, we recommend that you have at least two KMS hosts in case one of your KMS hosts becomes unavailable. Most organizations can operate with as few as two KMS hosts for their entire infrastructure.

Addressing KMS operational requirements

KMS can activate physical and virtual computers, but to qualify for KMS activation, a network must have a minimum number of computers (called the activation threshold). KMS clients activate only after this threshold is met. To ensure that the activation threshold is met, a KMS host counts the number of computers that are requesting activation on the network.

KMS hosts count the most recent connections. When a client or server contacts the KMS host, the host adds the machine ID to its count and then returns the current count value in its response. The client or server will activate if the count is high enough. Clients will activate if the count is 25 or higher. Servers and volume editions of Microsoft Office products will activate if the count is five or greater. The KMS only counts unique connections from the past 30 days, and only stores the 50 most recent contacts.

KMS activations are valid for 180 days, a period known as the activation validity interval. KMS clients must renew their activation by connecting to the KMS host at least once every 180 days to stay activated. By default, KMS client computers attempt to renew their activation every seven days. After a client's activation is renewed, the activation validity interval begins again.

Addressing KMS functional requirements

KMS activation requires TCP/IP connectivity. KMS hosts and clients are configured by default to use Domain Name System (DNS). By default, KMS hosts use DNS dynamic update to automatically publish the information that KMS clients need to find and connect to them. You can accept these default settings, or if you have special network and security configuration requirements, you can manually configure KMS hosts and clients.

After the first KMS host is activated, the KMS key that is used on the first host can be used to activate up to five more KMS hosts on your network. After a KMS host is activated, administrators can reactivate the same host up to nine times with the same key.

If your organization needs more than six KMS hosts, you should request additional activations for your organization's KMS key—for example, if you have ten physical locations under one volume licensing agreement and you want each location to have a local KMS host.

Note

To request this exception, contact your Activation Call Center. For more information, see Microsoft Volume Licensing.

Computers that are running volume licensing editions of Windows 10, Windows Server 2019, Windows Server 2016, Windows 8.1, Windows Server 2012 R2, Windows Server 2012, Windows 7, Windows Server 2008 R2 are, by default, KMS clients with no additional configuration needed.

If you are converting a computer from a KMS host, MAK, or retail edition of Windows to a KMS client, install the applicable KMS Client Setup Key. For more information, see KMS Client Setup Keys.

The Windows 10 product key is a dedicated 25-digit, letter, or number code which acts as a product key or code to unlock a software license and install the Windows operating system on your PC. The software can only be unlocked, installed, and used after it is unlocked.

A product key is usually subdivided into multiple parts comprised of a combination of various letters and numbers. Each licensing key is unique and can only be used with a single version of a purchased software. Through a special procedure, the licensing key is tested for its authenticity. The first ever licensing key was used as part of the Windows 95 operating system and was displayed on the installation disc cover. Windows justified the issue of a licensing code by saying that it was trying to avoid illegal usage of its licensed software.

Nowadays, you’ll either need a 25-digit code or a digital license to install Windows. Users without a digital license will need to retrieve their Windows 10 product key.

1. Get your Windows 10 product key: step by step

When do you have to retrieve your Windows key?

With the launch of Windows 10, product keys have become less important because Microsoft launched digital licenses in 2016. Digital licenses allow for the simple installation of an operating system without requiring a bootable device. The operating system can be activated via your Microsoft account. Even when you’re reinstalling Windows 10, the system detects the license automatically.

You’ll get a digital license if:

• You purchased a new PC with a Windows operating system
• You upgrade Windows 7 or 8 to Windows 10
• You purchase an operating system via the Microsoft Store

If you’ve purchased a digital license, you may be able to view the Windows 10 license and get a product key afterwards.

In the following situations it may be necessary to retrieve the Windows 10 product key:

• You’ve purchased the disc-based Windows 10 version
• You’ve got a digital version of the operating system from an authorized dealer
• You have a volume licensing contract or MSDN subscription

In addition, to deinstall or reinstall another Windows version you might need a Windows 7 product key or Windows 8 product key. However, the steps to retrieve product keys for older Windows versions may differ.

Get your Windows 10 product key: step by step

How To Find Product Key For Windows Server 2008 R2 Using Powershell Update

If you need to find the product key for your Windows 10 installation, you’ve got a few options. The key can be retrieved via the BIOS i.e. the bootloader of your system or the command window. You can also use external software to retrieve your Windows 10 key.

Find Windows 10 product key using third-party solutions

The easiest way to retrieve a Windows 10 product key is to use a special program. Because Microsoft doesn’t currently offer its own solutions, users will have to default to third-party providers such as Belarc which has developed a relevant tool. For example, the Belarc Advisor can be used to read the licensing code from the Registry or BIOS. To find your licensing code, follow these steps:

1. Download the third-party software from the website by filling in your email details
2. Install the Belarc Advisor
3. Start the tool by running it
4. Once installed, the software will automatically generate the product key

Windows 10 key retrieval using CMD

The command line or CMD can be used to gain information about a Windows installation key. However, you may only be able to view the last five digits of a Windows 10 code this way. Here’s how to do it:

Open the command line by searching for “CMD” or “command line.” Select the correct search result. Alternatively, launch a Run window and enter “cmd” to launch it.

Type the command “slmgr/dli“ and hit “Enter.”

After a short while, the last five digits of the product key will be displayed in a pop-up window:

Get your Windows 10 product key from BIOS

How To Find Product Key For Windows Server 2008 R2 Using Powershell Reset

If your Windows key is stored in the BIOS – the boot software of your Windows PC – you can retrieve it quickly by using the PowerShell program.

Launch the Windows PowerShell by searching for “PowerShell” in the search bar. Select the program and open it. The Windows configuration framework will be launched:

How To Find Product Key For Windows Server 2008 R2 Using Powershell Commands

Add the following commands to the PowerShell command line and confirm by hitting “Enter.”

If your Windows key is in the BIOS, you can now view it: