Cause: You are using an activation code for Deep Freeze 8.5 on version 8.7.
Fix: Offline codes are version-specific. Ensure you download the installer matching your license. A new code for 8.7 will not work on 8.3.
The portal will ask you to upload a *.da file from your offline machine. To get this file: deep freeze activation code offline new
You will need your Maintenance ID and Activation Key (found in your original purchase email). Do not lose this; it is the master key to generating offline codes. Cause: You are using an activation code for Deep Freeze 8