Secure Your PC with the best way part 1

AVG AntiVirus Free
AVG has long been the most popular free antivirus solution for the home PC user. It's not hard to see why - it offers just as much protection and functionality as some of the best paid-for security suites. For the average user it is more than enough to keep you safe from the evils of the web. (free version)
down load here

AxCrypt
Stop prying eyes from accessing your files with this light and easy to use gem. There are no fiddly setup options, just simple context-menu integration. Right-click the file you wish to protect, set your passphrase and huzzah! Your file is encrypted. Just make sure you don't forget that passphrase... (free version)
download here

CCleaner
As you use your PC, it will accumulate a lot of potentially unwanted data. Use CCleaner to detox your machine of these files and gawk in amazement as both your privacy and performance receive a (probably much needed) shot in the arm. (free version)
Download here