Your system requires really good protection. What type of antivirus are you using? Most of the people are looking for free software. When come to free software. It will be only home edition.
So better we can switch to any other good software which might be paid one. In my system i have installed Avast Antivirus Home edition. After using this i was really happy because its really a good software.
Why I am switched to K7?
K7 is most running antivirus.In my company they have installed K7 Antivirus. This is little costly but really effective. It heals or remove the virus 80% of it. We can get full protection for mobile as well. They have got good software that can be run on mobile also.
Avast software
Avast is also a good software. I don't say that it heals but it directly removes the affected files. Now this software also got good options and more protection plans.