Finding a Remote Desktop Services (RDS) license key is a process that depends entirely on how you purchased the software and which version of Windows Server you are running. Unlike consumer software, RDS licenses—often called Client Access Licenses (CALs)—are rarely printed on a sticker or stored in a simple text file. They are digital assets managed through Microsoft’s licensing portals or embedded within documentation provided by a reseller.
To locate your keys, you must first identify your purchase channel. If you bought your licenses through a Volume Licensing program, such as Open Value or Select Plus, your primary resource is the Microsoft 365 Admin Center or the older Volume Licensing Service Center (VLSC). After logging in with your organizational credentials, you can navigate to the billing or licensing section to view your purchase history. There, you will find the License Agreement numbers and Authorization numbers. In many modern deployments, you do not actually enter a "key" in the traditional sense; instead, you enter these agreement numbers into the RD Licensing Manager to activate the server's ability to issue tokens to users.
If you purchased RDS CALs through a Retail channel, the key is typically found on a physical "Product Key Card" or within a confirmation email if purchased digitally. These are 25-character alphanumeric codes. Retail keys are increasingly rare in corporate environments but are still common for small businesses. If the physical card is lost and the email is deleted, recovering the key may require contacting the vendor directly with proof of purchase.
For those using Service Provider License Agreements (SPLA), the process is different. In this model, you generally do not have a permanent key. Instead, you report usage monthly to your provider, and they ensure your infrastructure remains compliant. The "key" in this scenario is effectively the credentials and agreement numbers provided by your hosting partner or Microsoft representative.
Once you have identified the numbers or codes, you must interact with the Remote Desktop Licensing Manager tool on your Windows Server. This utility is where the "finding" and "activating" processes meet. By right-clicking the server name and selecting "Install Licenses," a wizard will guide you through entering your Agreement Number or Retail Key. If you are trying to find what is currently installed on a server to move it to a new one, you can use the "Manage Licenses" option in the same tool to migrate or rebuild the database.
It is important to understand that RDS licenses are not "extracted" from the registry like a Windows OS key. They are records of entitlement. If you are auditing an existing server and cannot find the documentation, your best course of action is to run a Licensing Diagnosis from the Server Manager. This will tell you the current licensing mode and the discovery state of the license server, though it will not reveal the secret key itself for security reasons.
If all digital and physical trails fail, Microsoft’s Clearinghouse is the final point of contact. This is a department dedicated to activating and managing license servers. By calling their support line, you can often recover your licensing information by providing your company name, contact information, and any partial details about the original purchase. While time-consuming, this is the most reliable way to restore a lost RDS licensing environment without repurchasing the CALs. Microsoft directly third-party vendor Volume License Agreement number Is the server already running , or are you setting it up for the first time I can provide specific PowerShell commands navigation steps based on your answers.
Once you've activated Remote Desktop Services (RDS) Client Access Licenses (CALs), the actual product key is not stored in a viewable format on the server. Instead, you manage and verify them through the RD Licensing Manager.
Here is how you can find your license details based on where you are in the process: 1. View Active Licenses on Your Server
If the licenses are already installed and you just need to see their status or quantity:
Open the Manager: Go to Server Manager > Tools > Remote Desktop Services > Remote Desktop Licensing Manager.
Check Status: Select your server from the list. You can see the total number of CALs, how many are issued, and their version (e.g., Windows Server 2022).
Generate a Report: For a detailed breakdown of "Per User" CALs, right-click your server and select Create Report > CAL Usage. You can save this as a CSV to view specific user assignments. 2. Retrieve Keys from Microsoft Portals
If you are trying to find the key to install it for the first time, check these official sources:
Finding a Remote Desktop Services (RDS) license key—specifically for Client Access Licenses (CALs)—depends entirely on how you purchased them. Unlike a standard Windows product key, RDS CALs are often "entitlement-based," meaning they are frequently managed via agreement numbers rather than a simple 25-character string. Where to Locate Your RDS License Details
The location of your license information is tied to your purchase method:
Remote Desktop Services (RDS) license key depends on whether you are looking for the key to the server or trying to retrieve an already
key. Once RDS licenses (CALs) are activated on a server, the full 25-character key is generally not viewable directly in the software for security reasons. Microsoft Learn Where to Find Your RDS License Details
If you need your license details for a new installation or migration, check these locations: Microsoft 365 Admin Center / VLSC : For volume licenses, log in to the Microsoft 365 Admin Center and navigate to Billing > Your products . You will typically find an Agreement Number Authorization Number rather than a traditional product key. Order Confirmation Email
: If you purchased through a reseller, the license key or "Key Pack ID" is often sent as an email attachment or digital receipt. RD Licensing Manager : While it won't show the full key, you can find your License Server ID Server Manager Remote Desktop Services Remote Desktop Licensing Manager Right-click your server and select Properties License Server ID is listed at the bottom. How to Install/Activate Your Key how to find rds license key
Once you have retrieved your Authorization/License numbers or product key from your provider, follow these steps to apply them:
Finding your Remote Desktop Services (RDS) license key depends on whether you have a physical retail product, a volume license agreement, or an already activated server. It is important to note that for many business setups, you don’t have a single 25-digit "key" but rather an agreement and authorization number. 1. Locate Physical or Digital Records
If you haven't installed the licenses yet, the key is typically found in your purchase documentation.
Retail/Boxed Copies: Look for a COA sticker or card inside the product box containing a 25-digit product key.
Digital/Email Orders: Search your inbox for a confirmation email from Microsoft or your reseller. It usually contains the License Key or Agreement Number.
Volume Licensing (VLSC): Most businesses find their details in the Microsoft Volume Licensing Service Center (VLSC). Log in and go to Licenses > Relationship Summary.
Click on the specific License ID to see the Authorization Number and License Number.
Microsoft 365 Admin Center: For newer subscriptions, check Billing > Your products > Volume licensing. 2. View Details on an Active Server Where do you find your CALs? - Spiceworks Community
Finding a Remote Desktop Services (RDS) license key is less like hunting for a single code and more like solving a digital puzzle. Unlike retail software, RDS Client Access Licenses (CALs) are entitlement-based
, meaning the actual "key" is often a set of agreement numbers found in your purchase portals rather than a sticker on a box. Step 1: Check the Remote Desktop Licensing Manager
Your first stop is the server itself. While it won't show you the original alpha-numeric key, it provides the vital License Server ID needed to retrieve or reactivate them. Open the Tool Administrative Tools Remote Desktop Services Remote Desktop Licensing Manager Find Your ID : Right-click your server name and select Properties License Server ID will be listed at the bottom. Run a Report : You can also right-click the server, select Create Report , and click to see a summary of what is currently installed. Step 2: Retrieve Numbers from Microsoft Portals If you are trying to find the numbers to install them on a server, you need to look in your volume licensing accounts. Microsoft 365 Admin Center Your products Volume licensing , look for your RDS CAL agreement. You are looking for an Agreement Number Authorization Number Volume Licensing Service Center (VLSC) : For older "Open License" purchases, log into the and navigate to Relationship Summary . Click your License ID to see the Authorization and License numbers. Step 3: When the Key is "Missing"
If you can't find the numbers in any portal, you have a few fallback options:
Finding a Remote Desktop Services (RDS) license key—often referred to as a Client Access License (CAL)—can be a source of frustration because Microsoft doesn’t typically provide a "key" in the traditional sense (like a 25-digit code on a sticker) for modern volume licensing. Instead, finding and managing these licenses requires navigating specific administrative tools and portals. 1. Check the RDS Licensing Manager
If the licenses are already installed on your server, the Remote Desktop Licensing Manager is the primary place to find details about them.
How to access: On your Windows Server, go to Start > Administrative Tools > Remote Desktop Services > Remote Desktop Licensing Manager.
What you’ll find: You will see a list of installed license packs. While this won't show you a raw "product key," it will display the License Program, the Agreement Number (or Authorization/License numbers), and the quantity of CALs. These numbers are what you actually need if you ever have to rebuild the server or move the licenses. 2. The Microsoft 365 Admin Center (Formerly VLSC)
For most businesses, RDS licenses are purchased through Volume Licensing. Microsoft has migrated the old Volume Licensing Service Center (VLSC) into the Microsoft 365 Admin Center. Where to go: Log in to the Microsoft 365 Admin Center.
The path: Navigate to Billing > Your products > Volume licensing.
Downloads & Keys: From here, you can view your agreements. Under the "Downloads & Keys" tab for your specific RDS version, you will find the Authorization and License numbers required to activate the licenses on your server. 3. Retail Boxes and Email Confirmations Finding a Remote Desktop Services (RDS) license key
If you didn't buy through a Volume License agreement (e.g., you bought a "Retail" pack for a small business):
Physical Box: If it was a physical purchase, the key is on a card inside the packaging.
Digital Retail: If bought through a third-party vendor or the Microsoft Store, search your email for "Product Key" or "License Confirmation." These will provide a standard 25-character key that you enter directly into the "Install Licenses" wizard in the RD Licensing Manager. 4. Using PowerShell (For Active Servers)
If you are trying to find details about the current licensing configuration via command line, you can use WMI (Windows Management Instrumentation) through PowerShell: powershell
Get-WmiObject -Class Win32_TerminalServiceSetting -Namespace "root\CIMV2\TerminalServices" Use code with caution. Copied to clipboard
This won't spit out a hidden key, but it will confirm your Licensing Mode (Per User or Per Device) and the Specified Licensing Servers, which helps you track down where the keys were originally installed. Summary of Terms
To "find" your key for activation, you usually need one of three pairs:
License Number and Authorization Number (Volume Open License) Agreement Number (Select, Enterprise, or School agreements) Retail Product Key (25-digit code)
If you have lost all documentation and the server is dead, your best bet is to contact the Microsoft Activation Center or your Cloud Solution Provider (CSP), as they can look up your purchase history using your company’s domain or tax ID.
Finding a Remote Desktop Services (RDS) license key is less like finding a hidden password and more like auditing a digital warehouse. Whether you are migrating servers or just trying to prove to an auditor that you’re compliant, here is the roadmap to locating those keys. 1. The RDS Licensing Manager (The Front Door)
For most modern Windows Server setups, the key isn't stored in a text file; it’s managed through a specific GUI.
Open the Remote Desktop Licensing Manager (found under Administrative Tools). Right-click your server name and select Properties.
Under the Connection Method tab, you can often see the "License Program" (like Open License or Retail) used to activate it.
While this won’t show the full 25-digit key for security reasons, it provides the License Server ID and Agreement Number, which are the actual "keys" you need for Microsoft support or re-activation. 2. The Digital Search: Check Your Documentation
If you bought your licenses through a volume licensing program, the "key" is actually a contract.
VLSC (Volume Licensing Service Center): Most businesses find their keys here. Log in, go to the Downloads and Keys section, and search for "Remote Desktop Services."
Email Receipts: For retail CALs (Client Access Licenses), the 25-digit key is usually sent in a confirmation email or printed on a physical COA (Certificate of Authenticity) sticker. 3. The Power User Way: WMI and PowerShell
If you need to pull information for a report without clicking through menus, you can query the Windows Management Instrumentation (WMI) layer. Run this in PowerShell as an Administrator: powershell Get-WmiObject -Class Win32_TSLicenseKeyPack Use code with caution. Copied to clipboard
This command returns details about the installed license packs, including the KeyPackId. It won't spit out a retail 25-digit key, but it identifies exactly what is installed on the system. 4. The Registry (The Last Resort) Sign in to the Microsoft Volume Licensing Service
You can sometimes find the Product ID (not the raw key) in the registry, which helps identify the version of the license.
Navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\RCM\Registration
This is mostly useful for troubleshooting "Grace Period" issues rather than recovering a lost key.
In the enterprise world, the Agreement Number is your true key. If you have that, Microsoft Clearinghouse can help you recover or move your licenses even if you've lost the original documentation. AI responses may include mistakes. Learn more
Title: Lost Your RDS Licensing? How to Recover and Manage Your Remote Desktop Services Keys
It happens to the best of us. You’re migrating a server, rebuilding an environment after a crash, or simply auditing your software assets, and you realize: “I need my RDS (Remote Desktop Services) license key.”
Panic sets in. You check your emails, your filing cabinet, and your old spreadsheets, but the key is nowhere to be found.
Before you start Googling "key generators" (which are dangerous and illegal), take a deep breath. If you purchased a legitimate license from Microsoft, there are official ways to recover your investment.
Here is a guide on how to find your RDS license key, depending on your situation.
If you purchased RDS CALs through a Volume Licensing agreement (Open, Select, Enterprise, etc.):
Open PowerShell as Administrator:
Run Command to Get License Details:
Get-WindowsFeature | Where-Object Name -eq RDS-LICENSING
Specific License Key Command:
Most IT admins lose the key because it is buried in a vendor email. Search your inbox (and your purchasing department's inbox) for these domains:
@microsoft.com@vshub.com (Volume Licensing)Look for the Subject Line:
| You need | Look for | |----------|-----------| | RDS CAL license key (to install on license server) | 25-character code from VLSC or reseller | | RDS CAL key pack ID (already installed on server) | Found in Licensing Manager, cannot reinstall elsewhere | | Windows Server product key | Different from RDS CAL – not for licensing users/devices |
If you have already installed RDS CALs on a license server and need the key for another server:
To activate the RDS license server online or by phone, you need the License Server ID.
Properties.12345-67890-ABCDE-FGHIJ-67890).This ID is required when calling the Microsoft Clearinghouse or entering manual activation codes.
The actual license key is not stored in plain text on the server after installation. However, the Key Pack ID is stored here:
HKLM\SYSTEM\CurrentControlSet\Services\TermServLicensing\Parameters\KeyPacks
Each subkey contains the Key Pack ID and license details – not the original 25-character key.