Revit 2021 not opening

[aheebwadaniel]

Revit 2021 is opening. Just keep the screen as shown in the picture. Can anyone help please ?

[handjonathan]

Hi @aheebwadaniel 

Thanks a lot for posting your question to the forums!    Can you try the below steps?

1. Make sure the system meets the System requirements for Autodesk Revit products.
2. Install the latest updates  using the Autodesk Access.
3. Try disabling Revit add-ons. (see How to disable add-ons for Revit).
4. Check that Antivirus is not blocking (see that Trend Micro Antivirus is blocking Revit). Test by temporarily disabling Windows Firewall
5. Reset Revit Settings: How to reset Revit to the installation defaults
6. Update the graphics card driver from the manufacturer's website.

Autodesk Licensing Service

Go through the following steps to check the Autodesk Licensing Service settings:

1. Open Services 
2. Open Autodesk Desktop Licensing Service
3. Select Log On
4. Select Log on as:
5. Select Local System account 
6. Select Allow service to interact with desktop
7. Select Apply
8. Select OK 
9. Restart the service
10. Attempt to reopen program

Reset TSF Data

Go through the following steps to reset the tsf data file:

1. Delete the following file or rename it (by adding a .bak extension at the end of the file name):

• Windows 7:   C:\ProgramData\FLEXnet\adskflex_*_tsf.data

Note: The above file is a hidden file (see How to turn on hidden files and folders on Windows). This file contains all activations for all 2010 and newer Autodesk products.  All product must be re-registered if this file is renamed/deleted.

2. Restart Revit. The program should automatically re-register through Register Today and start up as expected. A new adskflex_*_tsf.data file will be created when the product is re-registered.

Reinstall .NET

See the following article for instructsion on How to remove and reinstall the Microsoft .NET Framework.

Note: It is possible to uninstall .NET using the Control Panel and install the same version from Microsoft. Or from the \3rdParty\NET\4\wcu\dotNetFramework folder in the install media or deployment or if installing from a download under c:\autodesk folder.Windows User Account

Create a new local user account on the computer with administrative permissions. Once created, log into the computer with the newly created test account and see if Revit launches properly.

Reinstall Revit

If Revit also crashes under the test user account after doing all of the above steps, a complete uninstall and reinstall is needed (see How to Complete a Clean Install and Uninstall of Revit products).
We look forward to hearing back from you with more information so we can help you as a community!