Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Very, very bad - avoid at all costs

I've never had a PC virus but my understanding is that they can wreak havoc with your PC.Well, this does too.My PC - a fast laptop - has slowed down to a crawl since I installed this. Program windows take forever to open up, routines are constantly running in the background thereby taking memory away from the programs that you're working on, broadband access has slowed right down, File Open / File Save seems to want to look at every possible folder before it'll let you open or save to the location you want... I think you'll get the idea...An appalling product - Symantec should be thoroughly ashamed for releasing such a shoddy product.