To reset the EZFM_ui.ini

       1.Close FeatureCAM. This step is very important. 
       2.Open windows Task Manager and verify that no FeatureCAM/ezfm.exe processes are running. 

• This can be done in either the processes tab or the details tab.

       3. Navigate to the folder C:\ProgramData\FeatureCAM. 

Note: Program Data is a Hidden folder by Microsoft. If you don't know how to show hidden folders then follow this link: 

https://support.microsoft.com/en-us/help/14201/windows-show-hidden-files 

•  Make sure that all file name extensions are showing. 

Note: File extensions are not shown in Microsoft by default either. If you don't know how to show them, then follow think:

https://www.howtohaven.com/system/show-file-extensions-in-windows-explorer.shtml 

      4. Right click and rename the files ezfm_ui.ini to  ezfm_ui.ini.old 

• By renaming the files FeatureCAM will create new default files with the correct names the old files are not deleted if you need to use them again.

Once you have completed these steps (with FeatureCAM CLOSED) then restart FC, it will be back to factory defaults