KIS 2012 is a powerful suite, which can protect your PC with no real problems.You should remove Emsisoft Anti-Malware from your real-time protection because over doing it is as bad as not securing your PC.
As a optional step , you can increase KIS 2012 prevention by using it in
Interactive mode ,the main downside is that you'll may need to answer to some pop-ups, however this should increase your level of protection.
On this forums you' can also find a guide on "
How To Setup Kaspersky Internet Security 2011 for Maximum Protection",even if it's for the 2011 version ,you can check it out and see if you can use some settings for the 2012 version.
As a tip I would suggest to use the Kaspersky sandbox when browsing the internet, if you don't like it you can try Sandboxie.
Additional On-demand scanners:
Emsisoft Emergency Kit (Free) -
link
With the Emsisoft Emergency Kit Scanner you have got the powerful Emsisoft Scanner including graphical user interface. Search the infected PC for Viruses, Trojans, Spyware, Adware, Worms, Dialers, Keyloggers and other malign programs.
Run the Emsisoft Emergency Kit Scanner with a double click on a2emergencykit.exe. Found Malware can be moved to quarantine or finally deleted.
Additional browser protection:
LastPass (Free/) -
link
LastPass is an online password manager and form filler that makes web browsing easier and more secure.
Extra protection:
EMET 2 (Enhanced Mitigation Experience Toolkit) (Free) -
link
EMET provides users with the ability to deploy security features built into Windows to arbitrary applications. This helps prevent vulnerabilities in those applications from successfully being exploited. DEP, SEHOP and ASLR are such security features, if you want to learn more about what they do, you can watch this
video from Microsoft TechCenter. To configure EMET you should follow this
guide by rationallyPARANOID.
VTUploader (Free) -
link
To upload a file to VirusTotal, you can visit the main analysis site, click the Browse button to select a file from your hard drive, and then click the Send file button. You can make this process even easier with the free VirusTotal Uploader utility. After installing it, you can simply right-click any file under 20MB and choose "VirusTotal" from the Send To Windows menu. The scan results will display in your browser as usual.
As for you PC specs it would be a good idea to start a topic in the
Hardware Showcase Forum