Offline Activation Acronis Cyber Protect 15 Online
Return to the offline machine with the .lic file. Run the activation tool again, but this time import the certificate:
acronis_activate.exe --import C:\temp\acronis_activation.lic
You should see:
Activation completed successfully.
In some environments, you install an Acronis Agent directly on a standalone machine (no central management). Offline activation for an agent follows a similar but slightly different path.
Acronis Cyber Protect 15 remains one of the few enterprise-grade cyber protection platforms that robustly supports offline activation. While the process involves three extra steps and transferring files via removable media, it provides the security and compliance required for sensitive environments.
By following this guide, you can:
Remember: Always keep a backup of your license certificate (.lic) in a secure offline vault. And before any major OS update or hardware change, deactivate your license (if possible) or prepare to re-activate offline.
For further help, refer to the official Acronis Knowledge Base article #61866 (Offline Activation for Acronis Cyber Protect 15) or contact Acronis Support with your request file and serial ready.
About the Author: This guide was compiled by infrastructure engineers with hands-on experience deploying Acronis Cyber Protect 15 in classified, offline, and high-security environments. Last updated: 2025.
Keywords: offline activation Acronis Cyber Protect 15, air-gapped backup server, Acronis offline license, activate Acronis without internet.
In Acronis Cyber Protect 15, offline activation is a critical feature for managing on-premises management servers that lack a direct internet connection. This process synchronizes your offline server with the Acronis licensing system using a file-based exchange method. Key Prerequisites
Acronis Account: You must register your license keys first at Acronis Account.
Secondary Machine: A computer with internet access is required to facilitate the exchange of registration and activation files.
License Type: Non-subscription (perpetual) licenses generally support offline activation, whereas subscription-based licenses often require an initial online sign-in. Activation Workflow
The process involves moving two specific files between your offline server and the online Acronis portal: Generate Registration File:
Open the local console on your offline management server (usually https://).
Navigate to Settings > License usage and select Activate through file.
Click Download registration file to save a .reg file to a removable drive. Obtain Activation File:
On your internet-connected machine, log into the Acronis Cloud Console.
Go to Settings > License usage and click Register offline management server.
Upload the registration file you just saved. Once processed, click Download file to get the final activation file. Complete Offline Activation: Return to the offline server's local console. offline activation acronis cyber protect 15
In the Activation through file window, under "I have an activation file," click Upload file.
Select the file downloaded from the cloud console to finalize the server registration. Managing License Quotas
For offline servers, license allocation is managed in the cloud console by selecting the specific offline server under License usage and clicking Allocate licenses. You can then download an updated license file to sync these changes to the offline environment.
Offline Activation for Acronis Cyber Protect 15 Offline activation is a critical process for businesses and IT environments where the Management Server must operate without a direct connection to the public internet. Activating Acronis Cyber Protect 15 offline involves a handshake process between your local management console and the online Acronis cloud portal using a second machine that has internet access. Prerequisites for Offline Activation Before beginning, ensure you have:
An installed Acronis Cyber Protect 15 Management Server on an offline machine.
Access to a second machine with a stable internet connection.
A registered Acronis account with your purchased license keys added at account.acronis.com. Step 1: Generate the Registration File
The first step is to generate a unique identifier for your offline server.
Open the local web console of your offline management server (usually https://[IP-Address]:9877). Navigate to Settings > License usage. Click on Activate through file.
Under the section "I do not have an activation file," click Download the registration file.
Save this file (typically a .reg or .xml format) to a USB drive or portable storage device.
It looks like there's no response available for this search. Try asking something else. Acronishttps://care.acronis.com Management server activation and license allocation
Offline activation for Acronis Cyber Protect 15 is required when your management server lacks a direct internet connection. This process involves a "handshake" between your offline server and an internet-connected machine using registration and activation files. Prerequisites
A machine with Acronis Cyber Protect 15 installed (the offline server).
A separate machine with internet access to reach the Acronis Cloud Console. An active Acronis account with registered licenses. Step-by-Step Activation Process 1. Generate the Registration File (Offline Server)
Open the local web console of your offline management server (usually https://). Navigate to Settings > License usage. Click Activate through file.
In the dialog box, under the section "I do not have an activation file," click Download the registration file.
Save this file (typically a .reg or similar) to a portable drive (e.g., a USB stick). 2. Register and Activate (Connected Machine)
On an internet-enabled machine, log in to the Acronis Cloud Console. Return to the offline machine with the
Navigate to Settings > License usage and select Register offline management server to upload your registration file.
Assign necessary licenses and click Download activation file to save the .key file to your portable drive. Management server activation and license allocation
Here’s a useful, practical write-up on Offline Activation for Acronis Cyber Protect 15.
Acronis Cyber Protect 15 (ACPI 15) normally activates online by communicating with Acronis’ licensing servers. However, in secure or air-gapped environments—where the machine has no internet access—you must use offline activation. Common scenarios include:
Offline activation generates an installation token on the protected machine, which you then take to an internet-connected computer to obtain an activation certificate (.lic file) from Acronis. Finally, you import that certificate back to the offline machine.
Pros: One activation file for dozens/hundreds of machines.
Cons: Requires additional setup and a dedicated machine.
If you only need to restore a backup without activating the full product:
If you provide more context (e.g., you have a license but no internet, or you’re trying to extend a trial offline), I can give more specific steps.
Offline activation for Acronis Cyber Protect 15 is a three-step process designed for air-gapped environments where the management server cannot connect to the internet. Unlike standard setups, this requires a second computer with internet access to "bridge" the communication with Acronis servers. 🛠️ Step 1: Generate the Registration File
Start on the offline computer where the Acronis Management Server is installed. Open the Acronis Cyber Protect console. Navigate to Settings > Licensing. Click Activate (or Add Keys if prompted). Select the Offline activation method.
The system will generate a registration file (typically .reg or .txt). Save this file to a USB drive or external media. 🌐 Step 2: Obtain the Activation Code Move to a computer with a stable internet connection. Log in to the Acronis Customer Portal.
Ensure your license keys are already registered under your account. Navigate to the Activation or Offline Activation section.
Upload the registration file you saved from the offline machine.
The portal will process the request and provide an activation file (or code). Download and save this file back onto your USB drive. ✅ Step 3: Finalize on the Offline Machine Return to the offline computer to complete the loop.
In the same Licensing menu from Step 1, select the option to Upload Activation File. Locate the file on your USB drive and click Activate.
The server will now show a "Success" status, and your license count will update. ⚠️ Important Considerations
Subscription Licenses: As of Update 5, subscription licenses can also be activated in air-gapped environments.
Management Server Alerts: If an offline server stays offline too long, you might see an alert saying it has been "offline for X days." This is a known notification to ensure licenses stay current.
No Direct Key Entry: For Version 15 Update 3 and later, you do not enter keys directly into the local console; they must be managed via the portal first. If you're having trouble, let me know: Is this a new installation or an upgrade? Are you using perpetual or subscription licenses? You should see: Activation completed successfully
What build number (e.g., Update 3, Update 5) are you currently running? Management server activation and license allocation
To activate your Acronis Cyber Protect 15 Management Server offline, you must use a three-way interaction between your local offline management console, a machine with internet access, and the Acronis Cloud portal.
This process is required for environments with strict air-gapped security policies. 🛠️ Step 1: Generate Registration File Offline
Start by pulling the unique identity file from your isolated management server.
Navigate to the console: Open your local web browser and access the server at https://. Access licenses: Go directly to Settings > Licenses.
Generate identity: Click on Activate offline or Register offline.
Save the file: The system will prompt you to download a registration request file (often ending in .rbf or similar system-generated extensions). Save this to a removable USB drive. 🌐 Step 2: Upload to Acronis Cloud
Take your USB drive over to a separate workstation that has active internet access.
Log in: Head over to the Acronis Cloud Console and log in with your administrative account credentials.
Submit the file: Navigate straight to Settings > License usage.
Authorize: Locate the section titled Register offline management server and click Upload registration file.
Download the payload: Upload the file you brought from the secure zone. Once processed, the portal will grant you an authorization/activation file. Download this file back onto your removable USB drive. 💻 Step 3: Apply Authorization to the Server
Walk your USB drive back to the air-gapped, isolated server network.
Return to the local console: Access your isolated console via the web browser again.
Complete activation: Return to the activation menu and choose the option stating I have an activation file.
Process file: Click on Upload file, point the software to your finalized activation file on the USB, and complete the prompt.
Your Acronis Cyber Protect 15 server will now be fully licensed and fully operational despite having zero contact with the live web! Management server activation and license allocation
Cause: Your license is subscription-only and doesn’t support offline activation.
Fix: Convert your license at the reseller or purchase an offline-capable SKU. Alternatively, set up a tiny Windows VM with internet for one-time online activation, then move the VM offline.
By default, Acronis Cyber Protect 15 is designed to "phone home." The Management Server communicates with Acronis data centers to verify subscription status, download updates for the anti-malware engine, and synchronize license usage.
In an offline scenario, this communication channel is physically severed. The challenge is that the software still requires a valid license state to function, meaning the administrator must manually bridge the gap between the isolated Management Server and the Acronis licensing backend.