where is my key

Hello,

3 days ago i bought the professional edition of avast (40 euro), but avast didn’t email me the registration key… what should i do?

Welcome to the forum! :slight_smile:

Check this thread for some info about “lost keys”

http://forum.avast.com/index.php?topic=26764.0

You can send an email to sales@avast.com and explain what’s going on.
Where did you buy avast?