The following links below are recommended links for you to use. Feel free to contact me and let me know how they worked out, and if you find something new, also drop me a line.
FreeNAS Network Storage – http://freenas.org/
Malwarebytes – https://www.malwarebytes.org
Auslogics Disk Defrag – https://www.auslogics.com/en/software/disk-defrag/