NI Multisim 14.3 is activated via the NI License Manager using either an online login or an offline serial number method, ensuring the installed edition matches the license type. Users can also manage licenses through a volume license server or activate a temporary trial. For detailed, step-by-step instructions, visit NI KnowledgeBase . Activating Software - NI - National Instruments

Select Multisim 14.3

: Locate the version in the list of installed software.

Method 2: Manual Activation

1. Open NI License Manager (Start Menu > National Instruments > NI License Manager).
2. Click Activate Software.
3. Choose Activate manually (without an internet connection).
4. A window will appear displaying your Computer ID. Keep this window open.
5. On a device with internet access, go to the NI Manual Activation Portal.
6. Log in to your NI account.
7. Enter your Serial Number and the Computer ID from step 4.
8. The portal will generate a long License Code (or an .lic file download).
9. Copy this code or transfer the file to your offline computer.
10. Back in the NI License Manager on your offline PC, paste the code or click Load License File to browse for the file you downloaded.
11. Click Activate.

Enter Serial Number

: Right-click the specific edition (e.g., Student, Power Pro) and select Activate . Enter your 20-character serial number without any extra spaces.