Or try this:   IronCAD cleanup: 1. Uninstall IronCAD. 2. Delete these folders:     C:\Program Files\IronCAD\2023     C:\Users\%USERNAME%\AppData\Roaming\IronCAD     C:\Users\%USERNAME%\AppData\Local\IronCAD     C:\Users\%USERNAME%\AppData\Local\CAXA     C:\Users\%USERNAME%\AppData\Roaming\CAXA 3. Run regedit.exe and delete:     HKEY_CURRENT_USER\Software\IronCAD     HKEY_LOCAL_MACHINE\SOFTWARE\IronCAD 4. Go to the folder %TEMP% and empty it as much as Windows will