Dual Boot system Home version 1 or 2 licenses?

Avast Free Antivirus / Premium Security
1

I have Avast Home installed on my XP computer system, I am going to also install Win 7 64 bit on another partition (dual boot option) and was wondering, when I install Avast on that Win7 partition, do I need another new license for that operating system or can I use the same license # that is on the Windows XP partition?

Thank You.

2

The one Home registration key can be entered in both, provided that your use on both systems is for Home and non-commercial use.