Try a repair of avast:
XP - Add Remove programs, select ‘avast! Anti-Virus,’ click the Change/Remove button and scroll down to Repair, click next and follow.
Vista, win7 - Control Panel, Programs & Features, uninstall a program, select ‘avast! Anti-Virus,’ click the Change/Remove button and scroll down to Repair, click next and follow.
You may need to reboot after the repair.
Check your system date and ensure that the month/year are correct and adjust as required.
I think your best option now is to do a reinstall,download a fresh copy of avast and save then uninstall avast via remove programs and reboot, delet the two leftover files in c\programs and c\program data then reinstall your saved copy of avast.
use the avast uninstall utility http://www.avast.com/uninstall-utility to this removes all of avast things on the computer and then reinstall the software and use the new key
if the problem persists then you have to contact sales @t avast dot com (remove the spaces, replace dot for . and remove the t after the @)
Hey, I am having same problems as other guy, my subscription is active for another year but in Avast it says subscription Active 0 days left and my Avast is turned off. I had them resend me the license- followed instructions - did not work. I check the Repair in Uninstall programs - message is error processing package Pleas use full update.
When I try to reinstall license from subscription - message I get is unable locate license file. The system cannot find the path.
Call support and of course got Yogi who will not help unless you buy $169 year support. Help