http://mcafee-com-activate-code.com/how-to-clean-and-maintain-computer-software/
Cleaning software regularly aids in preserving computer data. Antivirus applications and other software updates make sure that threats such as malware, rootkits, worms, etc., do not seep into the system. They also ensure that nobody gets unauthorized access to the network and data. Therefore, when you regularly back up your data, remove irrelevant applications, and repair your computer by fixing the Windows registry entries, defrag your hard drive, you make sure that your device can store data without unknowingly infecting them.