The is a specialized tool used to unlock features and manage software licenses for National Instruments (NI) products, such as LabVIEW, Multisim, and TestStand. While NI typically manages licensing through its official NI License Manager , third-party activators like the 2021 version of the NI License Activator (often associated with versions like 1.2) are frequently used by developers and students to bypass standard activation hurdles. What is NI License Activator 12 (2021)?

Before proceeding, ensure you have already installed your desired National Instruments software (e.g., LabVIEW 2021). Keep the NI License Manager closed during the initial steps.

The square icon should turn , indicating that the license has been successfully applied to the NI License Manager.

After right-clicking, select the option from the context menu.

Find the NI License Activator.exe file. It is often distributed as a standalone portable application.

Repeat this process for all sub-modules and toolkits you require.

: Many antivirus programs flag activators as "Potentially Unwanted Programs" (PUPs). You may need to temporarily disable your real-time protection or add the activator to your exclusion list.

Close the activator and open the official (found in your Start Menu). Check the status of your software; it should now show as "Activated" or "Licensed," bypassing the trial countdown. Important Troubleshooting Tips