I believe that there is a scheduled scan which I must have set up on my PC previously, which shuts down my PC when completed. This is inconvenient and I now want to change it. There is a Help file page which states that this is possible, but which is not much help otherwise on how to do it. I have been looking for a "Scheduling" tab within Settings and elsewhere without much success. Can someone please let me know what the secret is and where to find it. I am using Avast Free with Windows XP. Thanks