Complete Guide to Installing and Uninstalling Revit 2015 Products in BIM Software

Follow these steps to uninstall Revit 2015 products and remove any leftover files from your system, ensuring a clean environment for reinstallation.

Note: The default paths provided below apply to Revit Architecture 2015. Replace the product name accordingly if you are uninstalling a different Revit 2015 product:

Autodesk Revit Architecture 2015 / RAC 2015

Autodesk Revit Structure 2015 / RST 2015

Autodesk Revit MEP 2015 / RME 2015

Autodesk Revit LT 2015 / RLT 2015

Autodesk Revit 2015 / RVT 2015

Replace %username% with your current Windows login name.

Before you begin: Make sure to back up all custom family or template files.

1. Log in as a local system administrator and disable all antivirus software.
2. Uninstall specific Revit 2015 products via Windows Control Panel: Control Panel > Programs and Features > Uninstall the Revit 2015 products.
3. Uninstall the Autodesk Material Library 2015 from the Control Panel: Control Panel > Programs and Features > Uninstall Autodesk Material Library 2015.
4. Using Windows Explorer, delete the following folders as appropriate:
   • C:Program FilesAutodesk Revit Architecture 2015
   • C:ProgramDataAutodeskRAC 2015
   • C:Users%username%AppDataLocalAutodesk RevitAutodesk Revit Architecture 2015
   • C:Users%username%AppDataRoamingAutodesk RevitAutodesk Revit Architecture 2015
5. Open the Windows Registry Editor (Start > Run > regedit) and delete the following keys as appropriate:
   • HKEY_CURRENT_USERSoftwareAutodesk RevitAutodesk Revit Architecture 2015
   • HKEY_LOCAL_MACHINESOFTWAREAutodesk RevitAutodesk Revit Architecture 2015
   • HKEY_LOCAL_MACHINESOFTWAREAutodeskRAC 2015

Warning: Editing the Windows registry incorrectly can cause serious problems, potentially making your operating system unusable. Please refer to the Microsoft Knowledge Base for detailed information: Microsoft Registry Guidance.

Only proceed with registry edits if you have backed up your registry and system. Use Microsoft® Registry Editor carefully. For more support, see the Microsoft Knowledge Base article TS66513 and related help topics within the Registry Editor.

6. Restart your computer to complete the uninstallation process.

After rebooting, you can proceed to reinstall the Revit 2015 product.

Additional steps before reinstalling:

1. Open Windows Explorer and delete the contents of the Temp folder, but do not delete the Temp folder itself. You can access it by typing %TEMP% in the address bar of Windows Explorer.
2. Use the Task Manager to end any running antivirus programs.

Note: Simply disabling antivirus software from the system tray may not be sufficient. Antivirus programs often block certain activities such as registry access or DLL updates during software installation or removal.

To fully disable antivirus programs, right-click their taskbar icons and select “Disable” from the context menu. For detailed instructions, contact your antivirus software provider.

Important: It is crucial not only to disable antivirus software but also to terminate their processes using Task Manager to prevent interference.

To confirm the antivirus program is not running in the background:

1. Press Ctrl + Alt + Delete.
2. Click Task Manager.
3. In the Processes tab, find the antivirus program’s process and click End Process.

Once the system is clean and antivirus programs are fully disabled, proceed with installing your Revit 2015 product.

Note: If the Revit product still appears as installed in Windows Control Panel after following these steps, please refer to the technical solution titled: “Revit displays as installed in Windows Control Panel even after clean uninstallation”.

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