My previous expired and I just purchased a new one. The new key wont work, it keeps saying " Unable to insert the license file. AN attempt was made to load a program with an incorrect format."
When you renewed you should have received an e-mail with an Avastlic attachment. Save that to your desktop and double click it. If the file is corrupt then use the resend licence page http://www.avast.com/resend-license-paid.php
Is that it may be? Earlier this morning, it was working but this afternoon my computer crashed and when I rebooted, thats when my Avast didn’t work anymore and I bought the license thinking it was expired yet both the OLD and NEW does not work.