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Screenshot Captor / Re: NOD32 False Positive
« Last post by Carol Haynes on September 01, 2009, 06:37 PM »could something actually infect your computer withohut the live scanner catching it?-superboyac (September 01, 2009, 05:04 PM)
Yes - if it is a new virus infiltrates your system before the AV vendor updates their virus database is updated. Future scans would detect it.
Trouble is it is a cat and mouse game.
It is unlikely that you will get a virus with decent AV software without regular full scans but not impossible - somebody has to be the one to identify a new virus! That is where heuristics are important - just a shame they aren't generally bright enough to be foolproof when it comes to false positive.
If you are looking for a free antivirus (i.e. for non-commercial use) the three I would choose in order of preferences are:
AVAST
Avira
AVG
I went off AVG a bit when the nag screens started and also had some clients with problems with network connections from AVG 8 upgrade from 7. I come across people who use it and they seem generally happy but I don't recommend it any more because of the number of issues I have encountered.
Avira is a good AV but I didn't really like the interface for the free version and it suffers from lots of false positives.
Avast hasn't caused me any problems so far on my laptop - light on resources and doesn't seem to to have bad false positives stats. There are no nag screen and it is pretty transparent in use. I have recommended this to many home user clients and so far have not come across any issues or complaints. Avast is also very frequently updated (often 2 or 3 times a day).

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