When I get my computer back....

from the repair shop how do I load Avast back on. I think he will either have to wipe my drive clean or replace it altogether.

Thanks,
Terri

Just download it again from http://www.avast.com and install it.

Also, go to the SSL page version and register from there: https://secure.avast.com/scripts/register.php?lang=ENG

See the tutorial: http://www.avast.com/files/tutorials/insert_key.htm