Windows activation is designed to be as foolproof as possible, so Microsoft’s graphical tools keep it simple. If you want to do something more advanced like remove a product key, force an online activation, or extend the activation timer, you’ll need Slmgr.vbs.
This command line tool is included with Windows, and provides options unavailable in the standard activation interface provided on the Update & Security > Activation screen in the Settings app.
After you have installed the updates and restarted the KMS server, you can add a new KMS host key (VLSC) and activate it. GVLK Keys for Windows Server 2019 & Windows 10 LTSC The list of public KMS activation keys (GVLK – Generic Volume License Key) for different Windows Server 2019 and Windows 10 LTSC editions is given in the following table.
First: Open an Administrator Command Prompt Window
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To use this tool, you’ll want to launch a Command Prompt with Administrator access. To do so on Windows 8 or 10, either right-click the Start button or press Windows+X. Click the “Command Prompt (Admin)” option in the menu that appears. On Windows 7, search the Start menu for “Command Prompt,” right-click it, and select “Run as Administrator.”
Note: If you see PowerShell instead of Command Prompt on the Power Users menu, that’s a switch that came about with the Creators Update for Windows 10. It’s very easy to switch back to showing the Command Prompt on the Power Users menu if you want, or you can give PowerShell a try. You can do pretty much everything in PowerShell that you can do in Command Prompt, plus a lot of other useful things.
View Activation, License, and Expiration Date Information
To display very basic license and activation information about the current system, run the following command. This command tells you the edition of Windows, part of the product key so you can identify it, and whether the system is activated.
To display more detailed license information–including the activation ID, installation ID, and other details–run the following command:
View the License Expiration Date
To display the expiration date of the current license, run the following command. This is only useful for Windows system activated from an organization’s KMS server, as retail licenses and multiple activation keys result in a perpetual license that won’t expire. If you haven’t provided a product key at all, it’ll give you an error message.
Uninstall the Product Key
You can remove the product key from your current Windows system with Slmgr. After you run the below command and restart your computer, the Windows system won’t have a product key and will be in an unactivated, unlicensed state.
If you installed Windows from a retail license and would like to use that license on another computer, this allows you to remove the license. It could also be useful if you’re giving that computer away to someone else. However, most Windows licenses are tied to the computer they came with–unless you purchased a boxed copy.
To remove uninstall the current product key, run the following command and then restart your computer:
Windows also stores the product key in the registry, as it’s sometimes necessary for the key to be in the registry when setting up the computer. If you’ve uninstalled the product key, you should run the below command to ensure it’s removed from the registry as well. This will ensure people who use the computer in the future can’t grab the product key.
Running this command alone won’t uninstall your product key. It’ll remove it from the registry so programs can’t access it from there, but your Windows system will remain licensed unless you run the above command to actually uninstall the product key. This option is really designed to prevent the key from being stolen by malware, if malware running on the current system gains access to the registry.
Set or Change the Product Key
You can use slmgr.vbs to enter a new product key. If the Windows system already has a product key, using the below command will silently replace the old product key with the one you provide.
Run the following command to replace the product key, replacing #####-#####-#####-#####-##### with the product key. The command will check the product key you enter to ensure it’s valid before using it. Microsoft advises you restart the computer after running this command.
You can also change your product key from the Activation screen in the Settings app, but this command lets you do it from the command line.
Activate Windows Online
To force Windows to attempt an online activation, run the following command. If you’re using a retail edition of Windows, this will force Windows to attempt online activation with Microsoft’s servers. If the system is set up to use a KMS activation server, it will instead attempt activation with the KMS server on the local network. This command can be useful if Windows didn’t activate due to a connection or server problem and you want to force it to retry.
Activate Windows Offline
Slmgr also allows you to perform an offline activation. To get an installation ID for offline activation, run the following command:
You’ll now need to get a a confirmation ID you can use to activate the system over the phone. Call the Microsoft Product Activation Center, provide the installation ID you received above, and you’ll be given an activation ID if everything checks out. This allows you to activate Windows systems without Internet connections.
To enter the confirmation ID you’ve received for offline activation, run the following command. Replace “ACTIVATIONID” with the activation ID you’ve received.
Once you’re done, you can use the
slmgr.vbs /dli
or slmgr.vbs /dlv
commands to confirm you’re activated.This can generally be done from the Activation screen in the Settings app if your PC isn’t activated–you don’t have to use the command if you’d rather use the graphical interface.
Extend the Activation Timer
RELATED:You Don’t Need a Product Key to Install and Use Windows 10
Some Windows systems provide a limited time where you can use them as free trials before entering a product key. For example, Windows 7 offers a 30-day trial period before it begins complaining at you. To extend this trial period and reset it back to 30 days remaining, you can use the following command.As Microsoft’s documentation puts it, this command “resets the activation timers.”
This command can only be used several times, so you can’t indefinitely extend the trial. The number of time it can be used depends on the “rearm count,” which you can view using the
slmgr.vbs /dlv
command. It seems different on different versions of Windows–it was three times on Windows 7, and it seems to be five times on Windows Server 2008 R2.This no longer seems to work on Windows 10, which is very lenient if you don’t provide it a product key anyway. This option still works on older versions of Windows and may continue to work on other editions of Windows, such as Windows Server, in the future.
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Slmgr.vbs Can Perform Actions on Remote Computers, Too
Slmgr normally performs the actions you specify on the current computer. However, you can also remotely administer computers on your network if you have access to them. For example, the first command below applies to the current computer, while the second one will be run on a remote computer. You’ll just need the computer’s name, username, and password.
The Slmgr.vbs command has other options, which are useful for dealing with KMS activation and token-based activation. Consult Microsoft’s Slmgr.vbs documentation for more details.
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We all have heard about Windows Keys all the time. This Product Key activates Windows on your computer so you can use it without any limitation. There are multiple places from where you can buy a Windows key. It can be from a retailer or from the OEM who sells a computer with Windows pre-installed or when your IT admin connects it with the corporate network.
Types of Windows 10 License or Key
There are three types of keys, and it is important that you know what kind of key you have received. I will hare the reason at the end of the post.
Retail Keys
You get this key when you buy a Windows 10 license from Microsoft Store or a retail store. It’s usually 25 alpha-numeric key which you enter in the activation setting. It gets verified, and if valid, the copy of Windows is activated.
OEM Keys
Office 2016 Kms License Key
OEM or the computer manufacturers strike a deal with Microsoft. They sell a computer with a copy of Windows which is already activated. Even after you re-install, the copy is activated. The OEMs embed this key in the UEFI firmware chip of the computer. This also means that you cannot transfer the keys to any other PC. Now you know whey they sell Windows for a lower price.
Volume Licensing (MAK/KMS)
Enterprise buys Windows license in bulk under Volume Licensing Program. There are two types of keys under this scheme – MAK and KMS. You can use MAK keys only once, while KMS keys can be used again.
How to tell if Windows 10 license is OEM, Retail or Volume
The Software Licensing Management Tool (slmgr) is a command line tool which is used for multiple purposes. One of them is to check the type of Windows 10 license.
Open a command prompt and run the following command:
Here the dli parameter will display the current license information with activation status and partial product key.
This will open a small window with information about the key. The format will be as below:
- Name:
- Description
- Partial Product Key
- License Status.
The description will include the type of license.
- Retail channel
- OEM_DM channel
- Volume_MAK
- Volume_KMS.
If the key you bought from a retail store, but it turns out to be a MAK key, you need to get a new key. Someone might have grabbed a MAK and KMS key and sold it off as retail key. You may not be able to use the keys after reinstallation. OEM_DM keys and Retail channel keys are just fine as they can be reused without a problem.
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