bluvoid -- go to power options, click on 'change what the power buttons do'. On that screen there'll be a setting to change settings which are not currently available. Click on that and then go down the page a bit and uncheck the setting that says 'enable fast boot'. Save the changes and reboot. Avast will then automatically update when you turn on your Win 8 machine (provided there is an update). Disabling 'fast boot' really doesn't add that much time to booting. I hope this is fixed in Avast 8 but it's certainly not a deal-breaker if it's not.