Microsoft's Live OneCare GO!

Windows Live OneCare will go on sale online today and in U.S. stores Thursday. The $49.95-a-year subscription service includes anti-virus protection, firewall, anti-spyware, PC tuneups, file backups and free support. One subscription works for up to three PCs. It's part of a broader move into security software that is positioning Microsoft to compete with other companies that offer security protections for its Windows operating system. McAfee's new offering, code-named Falcon, will come out this summer. Symantec will release a new service, code-named Genesis, also this year. From security flaws to untimely crashes, Microsoft Corp. has caused PC users no small amount of frustration over the years. Will they now be willing to pay the company to solve their computer-related woes? Microsoft will soon find out.