There are 7 major steps to cancel this how to cancel avast auto renewal
Sign in to your Avast Account using the link below
Select the My Subscriptions tile.
Locate the Avast subscription that you want to cancel.
Click Unsubscribe under the subscription that you want to cancel.
Click Continue.
Optionally let us know why you are unsubscribing, then click Unsubscribe.
Review the details about your canceled subscription, then click Close.
Sign in to your Avast Account using the link below:
https://id.avast.com/sign-in
If you do not know the password for your Avast Account, refer to the following article:
Resetting your Avast Account password
Select the My Subscriptions tile.
Locate the Avast subscription that you want to cancel.
If the subscription does not appear on the My Subscriptions screen, refer to the Still need help? section below.
Click Unsubscribe under the subscription that you want to cancel
Click Continue
.Optionally let us know why you are unsubscribing, then click Unsubscribe.
Review the details about your canceled subscription, then click Close.
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