allo.my problem is that i have avast since the to beginning of the compagny and i like it. But do to problems with the hard drive --i lost the blue one that i have my key registration. So I have to download the avast try–and I cant put my registration key and sorry guys but I dont like the news ones (orange one)and it is bigger that my old one even after done every update. My question is can I have my old one ? and put my registration key 
That is avast 5.0 the latest version of avast antivirus.
The 4.8 registration key won’t work in 5.0.
Do you have avast avast Pro ?
If so you can convert your old license key.
-
avast! 5 Pro license convert from 4.8 Pro license. Try http://www.avast.com/resend-license.php now, fill in the form giving your email and 4.8 Pro License key and they will send the new license file to you (presumably it will check you have a legit 4.8 Pro license first).
-
Avast! Pro antivirus Quick Start Guide http://files.avast.com/files/documentation/quick-start-guide-pro-en-ww.pdf
Registration, also see http://support.avast.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=459.
Thanks DavidR --no possibility to return to old version of avast ?I was free customer but I have my key for 1 year-- But when I change the hard drive forgot to back up my version --I have it since the to beginning of avast and my update was made I have my key numbers but --no place in the new one to put them–my prefence was with the old template with the blue ball.So my question is where I put my key numbers? or I should wait for the trial version and see what happening?My english is not so good (french speaking)–hope you understand what I mean–is DavidR can respond please everybody feel free to respond —Thanks :
Jirel
Yes, you should be able to go back to avast 4.8 though I have no ideal why you would want to do that as avast 5.0 provides better protection.
You would however need to have your 4.8 pro license key in the email you were sent.
You would also have to find the area on the avast site so you could download 4.8 pro.
@ jirel
Fellow Canadian here.
Look at:
avast! Free Antivirus license resend
http://www.avast.com/resend-license-free-antivirus.php
Best to install avast! fresh.
Download avast! free:
http://www.avast.com/en-ca/free-antivirus-download
Download aswClear5.exe
http://www.avast.com/uninstall-utility
Follow directions.
Install downloaded file.
thanks you guy i solve my problem i download 4.8 (somebody have it and I will put the old one with my activation key . Big kisses for both Jirel :-* :-*
No problem, glad I could help.
A belated welcome to the forums.