File sharing allows computers that are connected through a network to access files remotely.  Windows® has a built in method of sharing files which is very simple and often a security risk.  With the increasing threat of viruses and hackers, if you are not using file sharing, it is best to disable it.  If you are using file sharing, then make sure others have as little access as possible.  Use passwords and if possible only grant others read access so they cannot modify the data on your computer.  Below is a list of Windows® operating systems.  To learn how to configure file sharing click on your operating system.