AutoCAD LT: Program Splash Screen Starts Up & Then Closes

When you restart Autocad LT after it becomes unresponsive and freezes your computer, the splash screen is displayed briefly and then closes down with no apparent error message. 



Troubleshoot the problem using the following process:
Verify that the Licensing service is running. 

  1. Access the Windows Run box.
  2. Type Services.msc and press Enter.
  3. Search for FLEXnet Licensing Service or FLEXnet Licensing Service 64.
  4. Make sure the services are started and running. (If they are disabled, they will prevent the program from starting.)

Inspect the contents of productname201xENUAdlm.log 

  • Find this file at one of the following locations: 

Vista/Windows 7/8/10: C:\ProgramData\Autodesk\ADLM

  • The error will typically be:

Splash Error.jpg


Splash Error 2.jpg

These errors indicate that the ADLM trusted storage file was corrupted when the program crashed.

  • Rename the following file by adding a .bak extension at the end of the filename:

Vista/Windows 7/8/10: C:\ProgramData\FLEXnet\adskflex_*

Note: You may need to enable 'Show hidden Files' to see adskflex files mentioned above. Refer to the Microsoft topic, Show hidden files, for more information.

Warning: This file contains all activations for all 2010 and later products.  You will need to re-register all your products if this file is renamed/deleted.


  • Restart the program

It should automatically re-register and start up as expected. A newadskflex_* file will be created when you re-register your product.

Uninstall the product (if the previous process does not help)


If you are still having problems, licensing file could be corrupt.

  1. Uninstall ALL Autodesk products on the machine.
  2. Delete the file from step 3, above.
  3. Delete the Productinfromation.pit file from the following location:

Windows 7/8/10: C:\ProgramData\Autodesk\ADLM\ProductInformation.pit


Re-install the program.

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