Free AVG Virus Signature File Update is a nice, free software only available for Windows, that is part of the category Security software with subcategory Anti-virus.
The AVG Anti-Virus setup is straight forward, with a few clicks en updating of the virus definitions, your Free AVG software is ready.
Repeat step 4 and 5 periodically to provide the latest updates to the workstations.
NB: After downloading new update files to the server. run the utility every time you place new files in the folder to generate up to date CTF files.
Any copy, reuse, or modification of the content should be sufficiently credited to CCM (ccm.net).
These signature file update gives you protection against latest malware types.