The Question always kept wondering me !! can I run my system without using antivirus and not jeopardize my security , and in search of answer I went over a lot of articles and finally found the answer to be yes. The reason y not using Antivirus is simple , when we fall sick we are given some disgusting medicines which hardly goes down our throat same is the case with the PC , difference is only that even if the PC is not sick the medicine has to be taken or rather given. Antivirus programs hog on to our system resource making them slow, there are lot of people who hate this including me !! also the pain of cracking the antivirus every day updating them, renewing their signatures yearly some times by paying just adds to the Crap !!! so how do we go about “Anti – Antivirus” ?? the answer is quite simple .
Using the very uncommon thing called Common sense and following some of these mentioned tips.
Remember to use legitimate and clean software for your pc, think twice before downloading any software over internet. Remember that being without an antivirus program often means living without on-demand scanning, so a file you download online isn't as easy to check for viruses as it would be if you had an antivirus program installed. Still, plenty of people can and do assemble systems solely with commercial, off-the-shelf applications, and you can, too.
If you have a network of PC, you can very well share the drives of a Non Antivirus PC with a Pc running Antivirus and run a remote scan. Also there are lots of sites which provide an online scan of your PC like “Trend Micro’s House Call” or ESET’s site. But ya, the limitation are that these online scanning tools won’t clean the virus but they will definitely tell you the status of your PC.
Another way is when your windows boots up, it launches the code found in your system's BIOS (basic input-output system), which initiates the hardware in your PC and enables your operating system to identify the components you have. Within the BIOS of most PCs -- accessible by pressing F2 or Del during bootup -- is an optional boot sector protection mechanism. Enable this, and you'll protect against boot sector viruses without ever installing a single antivirus tool.
Moreover the browsers of modern era are well loaded with threat alerts system, analyzing the unsecured Scripts, anti phishing tools, and provide the list of websites which carry virus and malware programs. Using these features won’t slow down your system.
Free tools like windows bit defender which comes with Vista and free for download for windows XP can be used against spywares and malwares. Common sense will go a long way toward keeping your computer safe if you don't use antivirus software. Stay away from sites that are frequent carriers of spyware. These include, ironically, many sites that purportedly sell anti-spyware software.
One of the main sources of trouble is the Email messages from unknown users. The large majority of viruses are contracted from unsolicited e-mail, so use an e-mail application with a built-in spam checker, if at all possible.
Another Common way for entrances of virus is the usb. Now without any real-time scanner it becomes difficult to deal with USB drives. This USB drive generally contains a file names Autorun.inf which initiates the virus on the drive. And it will be triggered as soon as u plug the drive. So the solution is to disable the autorun option on windows by registry options.
Modifying the Registry is not for the inexperienced user, be VERY careful.
The modifications made in this case use Hex not Decimal numbers. If you are unfamiliar with the Registry or the characteristics of base numbering and Hex, studying these topics prior to making these modifications is advisable.
To modify these Registry Settings, Use Regedit and navigate to the following Key:
HKEY_CURRENT_USER -> Software -> Microsoft -> Windows -> CurrentVersion -> Policies -> Explorer -> "NoDriveTypeAutoRun"
The default value for the setting is 95 0 0 0. Change the first byte to 91. Restart the computer to make the new setting take effect.
So Guys these ways and of course Common sense will help u to get rid of ANTIVIRUS…. !!