Taking care of my computer

I do not know alot about how to care for my computer. i want to understand more about how to protect it and i dont know where to start. ive tried looking for books and information but i get so confused i dont know what to do or where to start. i would appreciate any help.

You’re not saying what your using.OS and so on.
If you use Avast,Malwarebytes on demand and a firewall, you should have no problems.

You can start by installing Avast! and then you have to read a lot.

http://en.community.dell.com/support-forums/virus-spyware/w/spyware_virus/do-s-and-don-ts-of-security-programs.aspx
http://blog.avast.com/2013/07/08/security-tips-from-avast-forum-evangelists/
http://www.bleepingcomputer.com/forums/t/407147/answers-to-common-security-questions-best-practices/
http://www.bleepingcomputer.com/forums/t/287710/how-malware-spreads-how-did-i-get-infected/
http://www.geekstogo.com/forum/topic/165867-malware-faq/
http://www.geekstogo.com/how-did-i-get-infected-in-the-first-place/
http://www.bleepingcomputer.com/forums/t/2520/how-did-i-get-infected/