---
locale: "en"
updated_at: "2025-10-30T14:47:13.495Z"
canonical: "https://www.isdecisions.com/en/userlock/docs/support/faq/license"
---

# License

Understand how UserLock licenses work and how to manage activations.

## How many UserLock licenses do I need?

**UserLock is licensed by the number of active users in the last 30 days.** An ‘active user’ is any user that connects to the machines (or a server direct) that you choose to audit and protect with the UserLock micro-agent.

**Once an agent is deployed, all logon connections to that machine, from any user, are detected and audited in UserLock and will count towards the license.** You can choose to deploy agents (manually or automatically) to audit and protect different session types (workstation, server, RDP, IIS, Wi-Fi, and VPN sessions).

If you already have UserLock installed and agents deployed, you can see which users are consuming a license by launching the diagnostic tool. To do this, press **ALT+F12** in the UserLock console, and open the file LicUsrs.csv.

Here you will see the Active Directory accounts counted in the license with the date and time of their last activity.

If you have [email notifications](/userlock/docs/server-administration/server-properties/service) configured in UserLock, you will receive an email when you reach 95% of the license consumption. UserLock will not protect users exceeding the license count.  If you receive an error message for “Insufficient Licenses” please contact our sales team to upgrade your subscription.

## Do connections from local accounts consume a license ?

No. Although you can see connections from local accounts in the users sessions view or in reports, these users do not consume a license because it is not possible to create restrictions for them.

## I have received my UserLock license serial. Where can I register it?

You can register your UserLock license in the server settings.

1. Open the UserLock console and go to **Server settings**.
2. In the [License ](/userlock/docs/server-administration/server-properties/license)menu, under the **License key** section, copy and paste the serial number we provided to you.
3. If the key is valid, you can save it. Otherwise, an error message will explain why the key cannot be used.