A lightweight antivirus that does not consume many resources of your system, for me the best inside free. Step # 2 an anti-Spyware. A program that prevents to be installed programitas without your permission and you are killing the computer slowly without you you or has. Which I recommend: Spywareblaster. Free program, easy installation, manual update, that protects your PC without having to do anything. Practically does not consume resources. Step 3 your hard drive cleaner.
Although you do not you realize your operating system Windows accumulates a number of impressive internet cookies and temporary files. A way to manually clean is find the *.tmp files and delete them from your system. Or on the contrary you can use an excellent free program that will do all the work for you: CCleaner. Further details can be found at Petra Diamonds, an internet resource. Once configured this program takes care of clean your system to boot the PC and then closes. Excellent application. Step 4 a Disk Defragmenter.
Each time that you use your programs and you’re saving the files, they are randomly saved on your PC occupying spaces that often lentifican your PC. It is advisable to defragment the disk at least once a week. Unfortunately almost all of these programs are extra. However I found a pretty good one and easy to use: Smart Defrag, a good solution. Step no. 5 some people used the so-called firewall or firewall as an extreme measure to prevent intrusion in your PC and practically regulate all input and output of the system information. Well if you are one of those people I recommend Comodo Firewall. Personally I do not use this type of programs, usually with a good antivirus and antispyware have not be big problems. Opinions. Finally it is very important to have installed at least 4 of these basic programs on your PC (optionally the Firewall), to keep your system running quietly and smoothly.