Security for Windows 7

Hi, can someone help me, recently my Yahoo Mail account got hijacked and I'm now looking to strengthen my security, I am a freelance Web Developer so it's critical my machine is protected. It is a Windows 7 64 bit custom built desktop.
The problems occured with Bullguard software 'protecting' my machine, I paid for this. Now I have gone out and bought AVG from Amazon. So with AVG providing the real-time protection, I also have Spybot S&D, and I now downloaded the free version of Malwarebytes, and I also downloaded Hijack This, but not entirely sure what to do with the resulting log after scan.
Is this a good setup, and are there any other softwares that can run with AVG, to enhance protection and keep my machine clean, or is there something far better than AVG, as the main protection? I checked out Combofix, and might add this to my armoury.

Anyway your expertise is very welcome.

Ant:))

Edit: Moved topic from Windows 7 to the more appropriate forum. ~ Animal

Please take a look at the following: Answers to common security questions - Best Practices Prevention & Choosing an Anti-virus or Firewall also ComboFix usage, Questions, Help? - Look here

Ok Thanks I read all that and will not install Combofix, and once I feel completely confidant my machine is clean I will make a backup to my external hard drive. However the questions still there, is AVG for real-time protection, supported by Spybot and the free version of Malwarebytes for occasional scans a good solution, or would you recommend anything else?

Thanks
Ant

I would get rid of SpyBot and add Superantispyware free addition.

I used to like Superantispyware until they made the portable version not really portable anymore. Spybot is great for just scanning but I was never a fan of the included TeaTimer being that it is just too naggy. I do however like the hosts file blocking. Also if you really want to be safer try a software firewall, Comodo has a free one too.

However the questions still there, is AVG for real-time protection, supported by Spybot and the free version of Malwarebytes for occasional scans a good solution, or would you recommend anything else?

See Supplementing your Anti-Virus Program with Anti-Malware Tools in the link provided by Animal.


FYI: mvps.org is no longer recommending Spybot S&D or Ad-Aware due to poor testing results. See here - (scroll down and read under Freeware Antispyware Products). Further, most people don't understand how to use Spybot's TeaTimer and that feature can cause more problems than it's worth. TeaTimer monitors changes to certain critical keys in Windows registry but does not indicate if the change is normal or a modification made by a malware infection. The user must have an understanding of the registry and how TeaTimer works in order to make informed decisions to allow or deny the detected changes. If you don't have understanding how a particular security tool works, then you probably should not be using it. Additionally, TeaTimer may conflict with other security tools which do a much better job of protecting your computer and in some cases it will even prevent disinfection of malware by those tools.