What to do with duplicate files?

I notice when i Run CCleaner to find duplicate files, I see thatthe files are placed in diffrent folders, which one to delete?

They could be restore files in case something messes up.

so don't delete them?

I think that question is waaaaaaaaaaaaaaaaaaay to general.

I'm afraid the answer is going to be as non-detailled as your question :/

Yes. leave them alone. Unless they are taking up a large mount of space.

erase both.