Blog Published: 21/09/2015

Blogger - Gurvinder Virdi

Autodesk Licence Types Explained – Standalone

As Autodesk are gradually transitioning to a Subscription only model and will soon be discontinuing perpetual licences, we thought it would be useful to take a detailed look at the licencing types available. Our CAD Application Engineer, Gurvinder Virdi, will explain the different licence types and server models over the course of three blog articles beginning with this one.

Standalone Licence

standalone licence allows a single CAD user to use the specified Autodesk software. The product can be installed on multiple machines, but depending on how many licences on the serial number the same product cannot be running simultaneously on different computers (later we will explain about multi-seat standalone licences). Autodesk define this as below:

 “With a single standalone license, products activate automatically when started for the first time if an internet connection is available, and if the serial number and product key combination is registered correctly with Autodesk.”

The option to run a 30 day trial is possible as a standalone and this is activated as soon as you open the software for the first time. This will also apply to a suite where by opening any of the software will start the trial count down. However it is possible to still activate the product within that 30 day trial if the user has a serial number and product key.

A trusted storage file is created when a standalone product is installed and running. This is a small alternation to the PC file system, related changes and the licence file stay on the machine when the software is removed. If you need to install the product again the tsf file will be present and a reactivation will not be required.

“” is the trusted storage file format; this file holds all standalone information and important data on the user’s machine. The file should not be deleted unless a licensing issue arises. Failure to keep this file will lead to all Autodesk software needing to be reactivated again.

When the standalone software is loaded, the machine will check for certain aspects of the computer and associates these with the following trusted values:
  • Hard disk or file system
  • Display or graphics card
  • BIOS serial number and version
  • CPU information
  • RAM size
  • Network card address
If it discovers that you need to change the hardware the best practice will be to export the licence via the License Transfer Utility (LTU) option. More information on that can be found here.


Image to show where the LTU can be found.

Once the hardware has been changed you can then import the licence via the same procedure as the export.

About the author

  • Gurvinder Virdi

Gurvinder Virdi

CAD Support Team Leader

Gurvinder joined Excitech as a Support Engineer in 2014 and has over 10 year's experience using software such as Autodesk's Inventor, Fusion 360, Solidworks, Revit, AutoCAD and other rendering software. Now Team Lead for IT and CAD support, Gurvinder has 8 years of experience in product, manufacturing, design and management workflows. He has a Degree in Automotive Engineering Design and a Masters in Sustainable Energy Technologies with Management.


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