Creo Direct > Designing in the Creo Direct Environment > Working with Files > Deleting Files and Erasing Objects > To Delete All Versions of a File
  
To Delete All Versions of a File
To delete all versions of the current object:
1. Click File > Manage File > Delete All Versions. A Delete All Confirm message appears.
2. Click Yes to delete all versions of the current object.
 
* You cannot delete a part or a subassembly that has been used in an assembly during the current working session until the assembly is deleted.