A:Answer Hi,
The answer to your question depends on what type of customer you are with Best Buy. If you are a Best Buy Assurance customer, your renewal should happen automatically as your subscription to Best Buy Assurance is a rolling one.
If you are an "off-the-shelf" Best Buy customer, you can renew online or over the phone, or you can buy a new copy of the software.
If you buy a new copy as per your question, it technically would be a new subscription rather than a renewal, so you would have to enter your new Keycode.
To answer the final part of your question, since our software is based in the cloud, it can be downloaded from the internet via the following installer links:
Webroot Best Buy Installer (PC): http://updates.webroot.com/downloads/WRInstallBestBuy.exe
Webroot Best Buy Installer (Mac): http://anywhere.webrootcloudav.com/zerol/wsamacbbs2.dmg
Webroot Community Team
Mark M.