Currently running free Avast 2014.9.0.2018. Avast tells me there is a new program available, so please update.
Every time I try to update, the update process stalls in step 3, extracting file asOutExt.dll.
Only way out is to power off the machine.
Running Windows Vista Home Premium on an HP desktop.
Be Sure Too Check Once Uninstall is Complete:Device Manager>View>Show Hidden Devices
If there is anything related to Avast with a yellow triangle then uninstall it (highlight, right click) and reboot.