Crash on startup or when opening files in Revit

Autodesk Support

Feb 17, 2025


Products and versions covered


Issue:

Users reported that Revit crashes on startup or when opening files.

Other symptoms may include:

  • The crash may occur when the program is visible.

  • The crash might occur after the splash screen appears.

  • The crash may prompt sending a Customer Error Report (CER) to Autodesk.

Solution:

First, identify if the crash occurs when opening Revit by itself (without opening a Revit model). Then try one or more of the following:

Crashes when opening Revit

    1. Create a new local user account on the computer.

    2. Assign the required administrator permissions to this user.

    3. Sign in to the computer with the newly created test account and see if Revit starts properly.

Note: More details in the article: How to create a new local administrator Windows user account

  • Rename the atiadlxx.dll.
    If the Windows Event Viewer references the atiadlxx.dll as the faulting component, rename the DLL to "atiadlxx.dll.bak".

Note: The DLL is in the following path: C:\Windows\system32

Crashes when opening of a Revit model

    1. Open the model with the worksets containing linked models closed: Open Worksets.

    2. If the model opens, reload each link individually until the problematic link is identified.

Note: See the following for Revit and AutoCAD links: 

More Troubleshooting

See the following link for more troubleshooting: Crash AND open.

For Revit 2019 and older

  1. Rename or Delete the FLEXnet files:

Close all Autodesk software, then rename or delete the following three files from this location: C:\ProgramData\FLEXnet

  • adskflex_<number>_tsf.data

  • adskflex_<number>_event.log

  • adskflex_<number>_tsf.data_backup.00

Note: Check if the files are not hidden using these steps: How to turn on hidden files and folders on Windows

  1. Locate and rename the ADUT folder:

    • Go to C:\User\username\AppData\Roaming\Autodesk\ADUT.

    • Rename the folder (for example, to "ADUT2").

  1. Delete the contents of the folder: C:\ProgramData\Autodesk\CLM\LGS

 

Products:

Revit Product Family; Revit Cloud Worksharing;


Was this information helpful?


Need help? Ask the Autodesk Assistant!

The Assistant can help you find answers or contact an agent.


What level of support do you have?

Different subscription plans provide distinct categories of support. Find out the level of support for your plan.

View levels of support