Hey,
I recently took my PC to a computer store after buy new hardware and gave them my LEGIT copy of Avast 4.5 Pro to install they also installed the 4.6 update which I was hyped about. I had no problems, but then this little update came 2 mins ago and it said my avast needed to reboot, after the reboot it uninstalled it self so when I installed it again my orignal key no longer works it seems that I’m 1 character sort? ???