Uninstall from the Start Menu

1. Search Windows for Uninstall Ansys, right-click the Uninstall Ansys shortcut for your version, and select Run as Administrator.
2. In the uninstall wizard, click Select All, then click Next, and let the uninstall finish.
   
   Note: Skip task 2 unless you have a difficult Ansys issue or support asked you to do a comprehensive uninstall.

Uninstall with Uninstall.exe

Both methods run the same Uninstall.exe in the Ansys installation folder.

1. In File Explorer, go to C:\Program Files\ANSYS Inc\.
2. Open the subfolder of the version you want to uninstall, for example 211 for 2021 R1, 212 for 2021 R2, or 221 for 2022 R1.
3. Right-click Uninstall.exe and select Run as Administrator.
   
   
4. Follow the wizard and select all the Ansys software you want to uninstall.
   
   Note: Skip task 2 unless you have a difficult Ansys issue or support asked you to do a comprehensive uninstall.

1. Search Windows for Add or Remove Programs and open it.
2. Select your version of Ansys Electromagnetics Suite in the list, then click Uninstall.
3. Follow the prompts to remove the application and all of its features.
   
   Note: Skip task 2 unless you have a difficult Ansys issue or support asked you to do a comprehensive uninstall.

1. Open an administrator Command Prompt, then paste and run these commands one at a time:

   sc stop "ANSYS, Inc. License Manager CVD"
   sc delete "ANSYS, Inc. License Manager CVD"
   sc stop "ANSYSLicensingTomcat"
   sc delete "ANSYSLicensingTomcat"
   sc stop "ANSYS, Inc. License Manager"
   sc delete "ANSYS, Inc. License Manager"

2. If you'll reinstall the License Manager, rename the C:\Program Files\ANSYS Inc\Shared Files folder to Shared Files.old. You must do this for a clean, successful new install.
3. Run this command:

   "C:\Program Files\ANSYS Inc\Shared Files\Licensing\winx64\ansysli_server" -k uninstall

   Note: If the command doesn't run, your install doesn't include the Ansys Licensing Interconnect service, so continue to the next step. You only enable that service to support older versions (HOW TO - Add FlexNet License Manager Support for Older Ansys Versions (2020 R2 & Prior)).
4. If the client software is also installed on this computer, specify your Ansys license server again, because the ansyslmd.ini file no longer exists.

Do these steps on the computer where the license manager is installed.

1. Search the Windows Start menu for ANSYS License Management Center, right-click it, and select Run as Administrator.
2. Click Stop on the right side of the page to stop the ANSYS License Manager.
3. Open an administrator Command Prompt, run this command to uninstall the ANSYS License Manager service, then wait for it to finish:

   "C:\Program Files\ANSYS Inc\Shared Files\Licensing\winx64\ansysli_server" -k uninstall

4. In the same Command Prompt, run these two commands to uninstall the ANSYS Licensing Tomcat service:

   sc stop "ANSYSLicensingTomcat"
   sc delete "ANSYSLicensingTomcat"

5. Delete the Shared Files folder. Its default location is C:\Program Files\ANSYS Inc\Shared Files.
   
   Note: Don't delete this folder if Ansys client software is also installed on this computer.
6. If the "ANSYS License Manager" folder is still in the Windows Start menu, you can delete it from %AppData%\Microsoft\Windows\Start Menu\Programs.
7. Search Windows for Edit the system environment variables, open it, and click Environment Variables.
8. Under "System variables", delete the ANSYSLIC_DIR and ANSYSLIC_SYSDIR variables, if present.
   
   Note: Skip task 2 unless you have a difficult Ansys issue or support asked you to do a comprehensive uninstall.

To uninstall from a script, see HOW TO - Install or Uninstall Ansys Silently.

1. Delete these folders:

   C:\Program Files\ANSYS Inc\vXXX
   C:\Program Files\AnsysEM\AnsysEMXX.X

   Replace vXXX with your version folder (for example v261) and AnsysEMXX.X with your Electronics version folder.
   
   Note: If you don't have other Ansys versions installed, delete these folders entirely.
2. Delete the Ansys temp files. Open File Explorer, paste %LOCALAPPDATA%\Temp into the address bar, and search for "ansys". Select all the folders in the results and delete them.
   
   
3. Rename these folders, if present, by adding .old to the end of the name:

   %appdata%\Ansys
   %appdata%\SpaceClaim
   %LOCALAPPDATA%\Ansys
   %LOCALAPPDATA%\SpaceClaim
   %LOCALAPPDATA%\ANSYS,_Inc
   %LOCALAPPDATA%\Ansys_Inc
   %userprofile%\Ansoft
   %userprofile%\.cfx
   %userprofile%\.ansys

   Note: %userprofile%\.cfx is a folder, not a file.
4. Search Windows for Edit the system environment variables, open it, and click Environment Variables.
5. Delete the Ansys environment variables:
   • One version: delete the variables with "Ansys" in the name or value that belong only to the version you're troubleshooting.
   • All versions: delete every Ansys variable, regardless of version number.
   
   

6. Search Windows for Registry Editor and open it.
7. Paste each of these paths into the Registry Editor address bar, one at a time, and delete each key:

   Computer\HKEY_CURRENT_USER\Software\ANSYS
   Computer\HKEY_CURRENT_USER\Software\ANSYS, Inc.
   Computer\HKEY_CURRENT_USER\Software\ANSYS\SpaceClaim
   Computer\HKEY_LOCAL_MACHINE\SOFTWARE\ANSYS, Inc.

   Note: Some of these paths may not exist.