When it comes to security I prefer a reliable anti-virus that can minimize the risk of an infection and protect your PC from any harm. A good way to do is by scanning your computer for viruses online. Advantage of scanning these files online is that the engine used by the scanner is usally up to date and the risk of a virus infection of the virus scanner is not present.
I rarely write about or review paid software on this blog. There are several free anti-virus software available on the internet. And many of them do an excellent job.
Wonder what's cluttering your hard drive? More often than not it is a huge collection of duplicate files. Easy Duplicate File Finder is a free powerful tool that helps you to find and remove duplicate files on your PC.