Under the section, in the offline activation dialog, select Load file and choose the authorization.json file from your USB drive. Click Activate .

A computer with a web browser to access the Acronis Portal.

: For environments with over 4,000 licenses, Acronis recommends using this offline file-based method even if internet is available to improve reliability. Management server activation and license allocation

Take the USB drive to a computer with an active internet connection. Go to the Acronis Licensing Portal. Log in to your account. Navigate to the section. Upload the registration_file.bin you exported in Step 1.

Log into the on your isolated machine.

To transfer files between the offline and online machines. Step-by-Step Offline Activation Process

Before starting the activation process, ensure you have the following items ready:

Acronis Cyber Protect 15 integrates backup, disaster recovery, next-generation antimalware, and endpoint management into a single solution. In high-security environments—such as government offices, financial institutions, or remote industrial sites—servers often operate in air-gapped networks without internet access. Because the software cannot communicate directly with the Acronis licensing servers, you must use the offline activation method to validate your licenses.

The process uses two specific files: