Please advise

I have the full Avast Internet Security 2013 but need to format my computer. I want Avast running after I have formatted and re-installed Windows 7, but before I reconnect to the Internet.

My problem is this, that it downloaded and installed directly into my computer, so to re-install it, I would need to connect to the Internet to re-download, which would leave my system unprotected. I can’t find where to download a stand-alone copy of the program.

I’d appreciate advice on how to solve this problem. Thank you.

download http://www.avast.com/en-no/download-software