If your PC isn't booting, opening windows, or launching applications as fast as it did when you purchased it, chances are your system is in dire need of a tune up. Registry issues and traces of uninstalled programs that weren't completely removed can bring your PC to the knees, but fortunately utility suites such as AVG PC Tuneup 2011 can clean up the muck. PC Tuneup 2011 is a potent collection of utilities including real-time hard drive monitoring, disk defragger, disk and registry cleaner, Internet connection optimization, and more. The program ($29.99 direct, per year for one license) produces obvious, positive results courtesy of its deep system scan and repair, but it's pricey in comparison to other clean-up utilities, especially when you add extra licenses.

AVG Technologies (formerly Grisoft) is a Czech company established in 1991 by Jan Gritzbach and Tomas Hofer, with corporate offices in Europe and the United States. The company specializes in computer security software. AVG anti virus has become one of the world's best right now with a lot of users in the world. AVG always brings many editions, but of the many editions of AVG provides a free anti virus that you can download to your computer.