Can I use my Avast Internet Security purchase on a different computer?

Just recently my XP machine stopped working due to a problem with the motherboard and I had Avast Internet Security as my AV on there. I also have a Windows 7 laptop that has Avast! Free AV so is there a way I can activate AIS on my laptop since my XP computer is no longer usable? I still have the email and attachments that came with the purchase I made for AIS . I’d hate for my 2 year AIS subscription to go to waste.

Yes you can. Just open the attached License.avastlic file and double click it.

Two ways to register your AIS:

https://support.avast.com/index.php?languageid=1&group=eng&_m=knowledgebase&_a=viewarticle&kbarticleid=1095