Such a bargain
I had previously renewed my AVAST anti-virus subscription using a 3rd party vendor (AntiVirusDeals) and got a 3 yr / 5 device subscription for $25. Worked great. That vendor did not have AVAST available as my 3 years were ending so I googled around and found something on Tanga. They had a 2 yr / 10 device deal for $25. I just received my activation code and plugged into my existing AVAST software's menu option at the top titled "Enter Activation Code" and it updated my expiration to 2028 seamlessly. No downloads or further installations required AVAST wanted $79/yr renewal for 1 device so doing the math I saved $291 on 2 year protection for my desktop and laptop.