How to insert registration key by command line

I setup avast home and received registration key by email.
and now I want to insert registration key by command line.
help me, please.

You can’t this function isn’t in the avast Home version, I’m not even sure it is available in the Pro version.

You have to manually insert it by copying and pasting it, see Insert Registration Key - Video.

sad
:cry:

At least you only have to do it every 14 months… ;D