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Bitdefender
What's wrong with Bitdefender 2018 version?
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<blockquote data-quote="Jim1013" data-source="post: 702303" data-attributes="member: 68883"><p>A Short update to my system:4 CPU spikes.</p><p></p><p>With some more of BD functionality turned on and I've now caught on several occasions quick looks while watching the threads in the "System:4" propoerties in process explorer.</p><p></p><p>I've seen perhaps 8 to 10 threads of "atc.sys" each using say 7.5%, ~8%, 4% of the CPU. (so adding up to quite a large amount corresponding with the CPU spikes. It seems to happen - usually when there is some activity on the computer. Searching for files in windows explorer seems to trigger it ... sometimes...</p><p></p><p>ATC.SYS is a bitdefender file. So it's pretty clear BD is the cause.</p><p></p><p>I've also noticed even more times when there are a stack of threads with atc.sys using almost no CPU - individually or collectively and no overall spike - perhaps avery small 'bump'. That part I am not worried about as it seems (to me with very little expertise) to be how a virus scanner SHOULD operate.</p><p></p><p>What it should not be doing is chewing up 100% or close amounts of CPU on an i7 8700 for little reason.</p></blockquote><p></p>
[QUOTE="Jim1013, post: 702303, member: 68883"] A Short update to my system:4 CPU spikes. With some more of BD functionality turned on and I've now caught on several occasions quick looks while watching the threads in the "System:4" propoerties in process explorer. I've seen perhaps 8 to 10 threads of "atc.sys" each using say 7.5%, ~8%, 4% of the CPU. (so adding up to quite a large amount corresponding with the CPU spikes. It seems to happen - usually when there is some activity on the computer. Searching for files in windows explorer seems to trigger it ... sometimes... ATC.SYS is a bitdefender file. So it's pretty clear BD is the cause. I've also noticed even more times when there are a stack of threads with atc.sys using almost no CPU - individually or collectively and no overall spike - perhaps avery small 'bump'. That part I am not worried about as it seems (to me with very little expertise) to be how a virus scanner SHOULD operate. What it should not be doing is chewing up 100% or close amounts of CPU on an i7 8700 for little reason. [/QUOTE]
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