How can I 'clear out' Noaa charts opencpn has already converted?

[sdowney1]

I put in the entire USA NOAA charts and did full database conversion.
I then moved the NOAA charts to another folder and deleted the directory to the charts and pointed to the new location, however opencpn is preparing the charts again when scrolled - browsed, so that means a ton of used up space from the prior conversion is used in some folder somewhere. I want to delete any converted charts and do the entire set again in the new location freeing up the drive .

It must be somewhere stored in windows 10, so what do I do?

[sdowney1]

Ok, I think I found them in folder SENC, 4GB of files.
ProgramData/Opencpn/SENC
Going to delete and rebuild them now.