Trend products (in my case Worry Free 9 SP3) picks up the premierupdte4_7a3.exe file as ransomeware and blocks the process at some point during install because of "unauthorized file encryption" so we had to make exclusions on all our servers which was bloody annoying.
PS i see it's your 1st post but there is software section - ADSL and VDSL is the wrong forum for your thread