If the slower product provides a security feature that you need and which the faster product doesn't provide then the performance test is useless.Ģ. Product A almost certainly provides different security features to product B, so it should come as no surprise that they have different performance impacts. The AV Comparative tests you linked to attempts to measure (and I'm quoting their website here) the speed with which a PC running a particular security product carries out a particular task, relative to an otherwise identical PC without any security software and these tests are flawed for two very good reasons.ġ. And remember, Windows 10 is built around these Defender (and other) security features, so from a performance point of view Defender will always be more efficient than any third party tool that relies on unofficial hooks into undocumented areas of the OS. Defender also runs in it's own sandbox so that it cannot be modified. Leaving aside the equally important firewall (which Defender provides), an anti-malware system should protect critical system areas from unauthorised changes (UAC does this, which is why you need it switched on), it should also provide mitigations against common attack vectors (Defender does this, via features like DEP, ASLR and CFG), it should also protect critical user data from unauthorised modification (Defender does this too, via Controlled Folder Access). Click to expand.Lets see whether we can lay this 'which is the best antivirus' argument to rest once and for all because everyone has their own personal favourite.įirst off, Internet security is about much more than anti-virus checking.
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