Question : SCCM Server Share Distribution point

m not able to copy a package to the Server share Distribution point
SMS distribution manager faile to process package "Notebook 10 v81272009 (package id =np10029a)

Possible cause: The package source directory contains files that might be in use by an active process.
Solution: Close any processes that maybe using files in the source directory.  If this failure persists, create an alternate copy of the source directory and update the package source to point to it.

How do you close the process runing this file?

Answer : SCCM Server Share Distribution point

Thanks.