MS Securtity Definitions - optional update!?

[BTRY B 529th FA BN]

Just an optional update for you. Not necessary to keep your computer secure

 

[mrjminer]

Might be a program update that doesn't affect the ability to do definition updates

Or a definition update that doesn't affect your machine based on another patch?

I always keep it up to date so I don't even pay attention to how they're usually classified