Uninstall Revit

To remove the Revit software, use the Autodesk Uninstall Tool.

See To Uninstall an Autodesk Product.

During the process, the following files in UserDataCache are deleted, unless they have been previously modified:

• MaterialUIConfig.xml
• OmniClassTaxonomy.txt
• Revit.ini
• shxfontmap.txt
• UniformatClassifications.txt

Note: Files in the user profile folder are not affected by the uninstall process.

Alternative Uninstall Instructions

In some cases, the standard uninstall process may leave behind some residual files and settings, which may interfere with a successful reinstallation of the software. When you need to completely remove the Revit software from a computer, including all residual files and settings, use the following procedure.

In these instructions, substitute the current Windows login name for %username%, and the appropriate language code for ENU or English, where needed. Also, the paths listed reflect Autodesk Revit 2021. If you are using another edition of the Revit software, substitute the appropriate values, as follows:

• Autodesk Revit 2021 or RVT 2021
• Autodesk Revit LT 2021 or RLT 2021

Note: Some of the folders listed below may not apply to your Revit installation.

To uninstall the Revit software using the alternative method

1. Back up any custom Revit family files or template files.
2. Log on as a Local System Administrator, and disable anti-virus software.
3. Using the Uninstall tool, remove Autodesk Revit 2021 and its sub-components.
4. Use Microsoft® Windows Explorer to locate and delete the following Revit 2021 files and folders (and subfolders, where they exist):

   In C:\Program Files\Autodesk\

   • Revit Cloud Worksharing 2021
   • eTransmit for Revit 2021
   • FormIt Converter for Revit 2021
   • Personal Accelerator for Revit
   • Revit 2021
   • Revit Content 2021
   • Revit Model Revit 2021

   In C:\ProgramData\Autodesk\

   • AdLM\RVT2021ENUAdlm.log
   • CADManagerCtrlUtility\RVT_2021.xml
   • CLM\LGS\829I1_2021.0.0.P
   • ContentPacks
   • Revit\Addins\2021
   • Revit Server 2021
   • Revit Steel Connections 2021
   • RevitServerTool
   • RVT 2021
   • RVT\2021
   • Structural\Common Data\2021

   In C:\Users\%username%\AppData\

   The following folders (and their subfolders and files) are specific to each Windows user account. They are created when users start the software. These files are not removed by the uninstall process and can be removed manually, if desired. If you retain the files, most of the user settings are used when you reinstall and start the software.

   • Local\Autodesk\Revit\Autodesk Revit 2021
   • Roaming\Autodesk\Revit\Autodesk Revit 2021
   • Roaming\Autodesk\Revit\Addins\2021
   • Roaming\Autodesk\RVT\2021
5. If you do not use any other Autodesk software, use Microsoft® Windows Explorer to locate and delete the following Autodesk files and folders (and subfolders, where they exist):
   Caution: Deleting these files and folders may interfere with the proper functioning of other Autodesk applications on the computer. Delete them only if you are sure that they are not required.

   In C:\Program Files\

   • Autodesk\Workflows Application 2021
   • Common Files\Autodesk Shared

   In C:\Program Files (x86)\

   • Common Files\Autodesk Shared

   In C:\ProgramData\Autodesk\

   • Adlm
   • ADUT
   • appIndex.xml
   • appIndex.xsd
   • CADManagerCtrlUtility
   • CLM
   • ContentPacks
   • Geospatial Coordinate Systems 14.04
   • INSTALLER
   • MC3
   • Revit
   • SDS
   • Structural
   • Synergy
   • Workflows

   In C:\Users\%username%\AppData\

   • Local\Autodesk\Adlm
   • Local\Autodesk\FormItConversion
   • Local\Autodesk\Revit
   • Local\Autodesk\Web Services\Revit
   • Local\Autodesk\User Geospatial Coordinate Systems
   • Roaming\Autodesk\ADUT
   • Roaming\Autodesk\INSTALLER
   • Roaming\Autodesk\MC3
6. Open the system registry, and locate and delete the following registry keys.
   Caution: Problems caused by improperly editing the Windows registry could render your computer operating system unusable. Microsoft provides critical information that you need to know about the registry in the Microsoft Knowledge Base at http://support.microsoft.com. Use the Microsoft® Registry Editor only at your own risk and only after backing up the registry as well as the system.dat and user.dat files as outlined for your operating system in the Microsoft Knowledge Base. Additional information about the registry is also contained in the Help topics in the Microsoft Registry Editor.

   To open the system registry

   • Windows 10: Right-click Start, and select Run. In the Open box, enter regedit, and click OK.

   Registry keys specific to Revit 2021

   • HKEY_LOCAL_MACHINE\SOFTWARE\Autodesk\Revit\2021
   • HKEY_LOCAL_MACHINE\SOFTWARE\Autodesk\Revit\Autodesk Revit 2021
   • HKEY_CURRENT_USER\Software\Autodesk\Revit\Autodesk Revit 2021 and all the keys under this branch

   Registry keys that may affect other Autodesk software

   Note: Delete the following keys only if you do not have other Autodesk software installed.
   • HKEY_LOCAL_MACHINE\SOFTWARE\Autodesk\Revit
   • HKEY_LOCAL_MACHINE\SOFTWARE\Autodesk
   • HKEY_CURRENT_USER\Software\Autodesk\Autodesk Sync
   • HKEY_CURRENT_USER\Software\Autodesk\SendMiniDump\Settings
   • HKEY_CURRENT_USER\Software\Autodesk\Structural\Common
   • HKEY_CURRENT_USER\Software\Autodesk\WebServices
   • HKEY_CURRENT_USER\Software\Autodesk
7. Restart the computer.
8. If you plan to reinstall the Revit software, do the following before starting the installation program:
   • Use Microsoft® Windows Explorer to locate and delete the contents of the following folders:
     Note: Do not delete these folders. Only delete their contents.
     • %TEMP%
     • C:\Windows\Temp
   • Log on as a Local System Administrator, disable anti-virus programs, and end their task processes.

   Now you can safely reinstall the Revit software.

9. Restart your anti-virus software.