Mystery parts appearing in new assembly and when opening stp files

Good afternoon all,

For a few months now I have been having an issue with parts automatically being inserted when I form a new sub assembly in the main assembly or when i open a stp file. I have attached a picture of the parts highlighted that get automatically inserted.  It does not matter what I am working on, these same 5 parts keep popping up.

How can I get rid of these?

SolidworksGeneral