Creo Direct > Designing in the Creo Direct Environment > Working with Files > Deleting Files and Erasing Objects > To Delete Old Versions of a File
  
To Delete Old Versions of a File
1. Click File > Manage File > Delete Old Versions. A confirmation prompt appears.
2. Click to delete older versions of the current object, or type the name of a different object and click .
 
* You cannot delete a part or subassembly that has been used in an assembly during the current working session until the assembly is deleted.