how to register my device in my avast online

how to register my device in my avast online so i can managing security of my device online. i already rigister with online when i install internet security but i delete mistakelly now how to re-register my device?

You might want to tried these below.

Activation of avast! using the license file - https://support.avast.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=1183&nav=0,616,617

Offline registration of avast! Free Antivirus - https://support.avast.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=1037&nav=0,616,617

Inserting the license key into avast! Free Antivirus - https://support.avast.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=1037&nav=0,616,617

I think you missed the target Speedy:

@ vegenesh
If you have deleted a device in my.avast.com, that corresponding device will have to be connected again.

That can’t be done remotely, you have to be at that device, open the avastUI, Summary section and it should be saying it is disconnected or not connected, there should be a connect link to the right of that. This should allow you to logon and connect the device to your avast account.

I know as I can’t find the Avast Internet Security video link for the correct section, however they look similar how to register as I’m aware is a free version section only.

ok thank you very much i manage to connect to online with your help

You’re welcome.