I've just had this happen to my avast Free AntiVirus. I got a "program update" message and when I checked I then got another message about my subscription having expired! I then noticed that my avast Free AntiVirus had somehow changed to avast PRO AntiVirus! So I swing by these forums to see if it's a known issue and find that it was reported 6 days ago and, apparently, avast have done absolutely nothing about the problem!
There is no "option" to switch back to the Free version, when I go to the "Subscription" tab all I see are "Subscription Status: EXPIRED" follwed by a "Renew Now" button with a "Your subscription has expired" message underneath, then the "Subscription Information" section which has no information other than "0 Days remaining" with a "Insert License file" button and finally an "Activation Code" section with an "Insert activation code" button. There is nothing else after that!
It seems that the only recourse is to uninstall avast Pro and try to reinstall avast Free. If this doesn't work then I shall simply give up and dump avast products in favour of an antivirus product that does actually work!
EDIT: I've now uninstalled avast Pro AntiVirus and reinstalled avast Free AntiVirus. So far so good, the newly installed avast Free AntiVirus hasn't "updated" itself to the Pro version "yet", hopefully it won't. I shall, obviously, continue to monitor my installation and will report back if the problem returns.
