Re Sophos AV
"Well, it sounds like you are a model employee who wouldn't dream of abusing your employers time or resources and are therefore fully qualified to criticise. I am sure these HD videos and audio encoding sessions are a central part of your job as a school technician"
That is a bit of an assumption? Firstly, you'd be amazed what we get asked to do as school technicians... secondly, the person who posted may not even be a school technician? Thirdly, they are right. The latest version of sophos uses an incredible amount of system resources which can almost grind the computer to a halt while updating. Coming from two schools which use sophos AV, I feel I can honestly say this.