Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Beware of WEBROOT software

To any interested parties - a downloaded copy of WEBROOT SPY SWEEPER has caused constant problems with my machine.I am kept running with outside business interests and don't have time to stay up to date on the latest computer issues. On Jul 22 07 I downloaded Spy Sweeper and within a few weeks began experiencing occasional lock-ups when starting my computer. These gradually increased in frequency and severity until it was necessary to restart my machine 3 or 4 times before it would run. After trying everything I could think of, I uninstalled Webroot Spy Sweeper on Sunday 9/23/07 and BINGO, no further problems.Today I called Webroot customer service to cancel my subscription and ask for a refund and was told very curtly that no refund would be given.(running WindowsXP; 1G ram)