Windows 7 options discussed; XP to 7 upgrade or buy a new PC with Windows 7 installed. Microsoft support for Windows XP ends April 2014.
Free antivirus, spyware, adware protection. Illustrates setup, registration, and configure settings. Avast and Avg are 2 good programs.
How to speed up my PC using the Windows Task Manager, disk cleanup, and Checkdisk; also how to use Registry Editor to backup Windows Registry.