After installing and upgrading are the necessary programs to be installed to get a capable installation of Windows to work with.
Avast, Norton, NOD32, Kaspersky …etc., are some names of Antivirus program is a must. I have tried all listed and all are working properly. The important thing is that you have the, not what, but only one of them. Only one.
Check in “Independet Test of AntiVirus Software”
SUPERAntiSpyware, Spybot Search & Destroy, Spyware Terminator, SpywareBlaster…etc.. Do not download any, there are many who claim to be protection for your computer, but is the opposite. SpywareBlaster can be used with the other. It protects against surfing the bad websites, type “Black List” that prevents you to visit a bad site. I recommend SUPERAntiSpyware which can be downloaded here: Download SUPERAntiSpyware. It is available as Freeware that can scan your computer, but I recommend Professional, Real-Time Protection, works very well. Stops Hackers many ugly when browsing online.
Spybot and Addware is also capable antispyware program. SpywareBlaster you should install whatever software you use.