I've been writing to different cleaning product companies to see if anything sold in stores kills Norwalk. Last week it was confirmed that Lystol doesn't. Today I wrote to Clorox about Clorox Clean-Up with Bleach, and here is what they said:
Thank you for contacting us about Clorox Clean-Up Cleaner W/ Bleach Spray. We always appreciate hearing from our consumers. We do apologize, we do not have any products including this one that has been tested and approved to kill the Norwalk virus. I apologize, that I am unable to better assist you.