If the 2015 version is not listed, use the Autodesk Virtual Agent chat. Type "Download AutoCAD LT 2015" to receive a direct link to the installer parts.
If your installer fails immediately or hangs at the "Initializing" screen, the culprit is usually a conflict with newer system components. autocad lt 2015 download fix
Navigate to C:\ProgramData\Autodesk\AdLM and move the .data files to a backup folder. This forces the software to reset its licensing clock and may allow the activation window to reappear. If the 2015 version is not listed, use