A friend of mine had numerous problems with the Kaspersky Suite and had to uninstall it. My advice is to keep the Comodo Pro Firewall. Uninstall the other mentioned programs. For an Anti-Virus, download and install AVG Free from here:AVG Free Advisor - Free antivirus and anti-spyware downloads...
Frankly, the best PDF reader I have used is the Foxit PDF Viewer (free) which you can obtain here: Foxit Software. It is small and loads very quickly. Gene K :D
I use an HP Photosmart Model D5345 which I purchased at a Wal-Mart about six months ago for approximately $90 dollars. Great printing speed (I mostly use the "Fast Draft" setting)and reliable. I mostly avoid "all-in-one" machines since when one function fails, you are without both scanning...