system
3
As well as raising the thread here, I also replied to Avast’s email. I then found your reply, did as you suggested, and found that the licence runs until February 2017. Panic over so thank you so much for your good advice.
Today we received a reply from Avast which more or less gave the same advice that you gave and also said that the system could not cope with altered licence dates or words to that effect.
Thank you once again. 