Want to make sure it's not just me and not unusual. If it's a true false positive, which Avast won't know the difference, depending on what its identified as could increase that time as well.Īnyone know that can answer that? ^ (do Avast scans always take longer when they detect a virus, even if it's a false positive) The increase in time you're talking about could also be when Avast is attempting to either quarantine or repair or both the file associated with being infected. I am curious and wanted to ask if this is abnormal or just the standard way that Avast works? So from what I've experienced whether or not Avast thinks there is a virus or not it will always impact how long a scan runs for, which is why it's really annoying getting false positives that also take much longer to scan. If they do detect a virus (or think there is a virus because it's a false positive) the scan will always take almost 2-3x longer to scan and run for like 35-50 mins. In my case with Avast scans always take a predictable range of time if they do not detect a virus- usually like 17-22 mins.
So you mean antivirus scans are not meant to take longer to do a scan depending on if they detect a virus(or false positive) or they detect nothing? This is why I think it's weird for me it always does take longer if it says it detects something. Hey, hedwar, thanks for more info and help! The part I underlined is what I want to clarify about. When dealing with something like that its best to do the research first. Nowadays we normally don't see this problem but I'm sure there are some anti-viral suites that are better than others. You could hardly do anything at all (even just sitting idle) when a scan was taking place or just under normal usage because it was such a hog on the backend and behind everything else. A good example of this was Norton products from say 10 years ago. Whether or not it detects, or thinks it detects (false positivies), has no bearing on how deep the program scans or not.ĭon't get this process confused with one virus scanner (protection suite, etc) being a bigger resource hog than another.
Virus scanners in general oftentimes will deeply scan a computer unless otherwise indicated in the pre-scan options for it not to.
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