How do I set Windows license keys in bulk?

In the past I’ve used the Microsoft Volume Activation Management Tool (VAMT) to apply licenses across an entire fleet of servers. there is, however, a bug in the tool which prevent you from using the letter ‘N’ in the license number. Even copy/paste doesn’t work – it simply drops any and all N’s.

Here’s what happens when I type the letter ‘N’:

So here’s a PoweShell script that levergaes WMI to install the license key, “invalid characters” and all.

# Load the Active Directory PowerShell module
import-module activedirectory;

# List an servers you want to exclude from this script (Cluster Objects etc)
$excludedservers = "SQLCLUSTER1", "SQLCLUSTER2", "KAMALTEST";


# get all servers from AD
$servers = get-adcomputer -filter {operatingsystem -like "*server*"} | sort name;

# Loop through each server
foreach ($server in $servers) {

    # Check if the current server is in the excluded list
    if ($excludedservers.contains($server.name)) {

        write-host "Excluding " $server.name;

    } else {

        # Check if server is online before using WMI
        if (test-connection -cn  $server.name -count 1) {

            # Get Software Licensing Service information
            $sls = Get-WmiObject -query 'SELECT * FROM SoftwareLicensingService' -computername $server.name

            # Install license key and refresh
            $sls.InstallProductKey("ABCDE-FGHIJ-KLMNO-PQRST-UVWXY");
            $sls.RefreshLicenseStatus();
        }
    }
}

# Load the Active Directory PowerShell module

import-module activedirectory;

# List an servers you want to exclude from this script (Cluster Objects etc)

$excludedservers = "SQLCLUSTER1", "SQLCLUSTER2", "KAMALTEST";

# get all servers from AD

$servers = get-adcomputer -filter {operatingsystem -like "*server*"} | sort name;

# Loop through each server

foreach ($server in $servers) {

# Check if the current server is in the excluded list

if ($excludedservers.contains($server.name)) {

write-host "Excluding " $server.name;

} else {

# Check if server is online before using WMI

if (test-connection -cn $server.name -count 1) {

# Get Software Licensing Service information

$sls = Get-WmiObject -query 'SELECT * FROM SoftwareLicensingService' -computername $server.name

# Install license key and refresh

$sls.InstallProductKey("ABCDE-FGHIJ-KLMNO-PQRST-UVWXY");

$sls.RefreshLicenseStatus();

}

HKEY_LOCAL_MACHINE

Every problem is an opportunity.

How do I set Windows license keys in bulk?

Leave a Reply Cancel reply