removing unwanted samples

whats the easiest way to get rid of samples you saved in different kits you made on the 4k? sometimes when i going thru my kits looking for sounds i come across alot of stuff i dont even know y i sampled it ,getting rid of unwanted stuff will save me time when im looking for drums or snares etc...
i just dont want to erase anything that id like to keep ?

Audtion them in aksys and erase what you don't like..

I don't know why you can't move files on the 4k or ak.sys. You can copy stuff to the computer and back to another folder though. What I would do is load all the samples you like while auditioning into RAM, then save them back into another folder. Then you get to keep everything but have your favorites in another folder.