Auto-renewals have become almost regular in certain industries. The virus software companies in most cases make it next to impossible to cancel. If you don't buy the software at a retail store, you are more than likely to be automatically renewed. One way to make sure that you don't get stuck with one of these auto-renewing softwares is to read the user agreement thoroughly before you sign up. So if you don't want to get billed too high a rate and not be able to switch services, watch your back and do your homework.