Hello Jeevan Kumar
We cannot make any genuine antivirus buy own. But we can develop software like antivirus by own and then take the advantage of this software. Also we can download free antivirus software like Avast etc.
Free antivirus software give limited performance for long time. Also these days best antivirus software like Norton products are very cheap and we can take advantage of this. We can buy single user license of NIS-2011 in Rs. 1400 and we can install in on the three computers.
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