Windows Defender removes potentially dangerous Dell certificate http://www.zdnet.com/article/windows-defender-removes-potentially-dangerous-dell-certificate/
It's not a FP... https://www.wilderssecurity.com/thre...ot-ca-similar-to-lenovo-and-superfish.381693/ http://www.laptopmag.com/articles/remove-dells-sloppy-security-software
I'm using Defender on a laptop with Windows 10. No slowdowns, no ads, no useless modules, no licence/account crap - I really like it so far.
Well... If your laptop would be slow like mine then you would say it would be slow too. Still, even on really fast desktop it clearly slows things much more than, say, Norton Security (and also uses more resources).
My experience is that with a Core 2 DUO CPU, Windows Defender can cause noticable slowdowns at times, but, on faster computers it is very light. I was using one of my laptops with a Core i5 CPU recently which has not 3rd party security software installed, and I was not seeing the slowdowns and significant CPU use I see on slower computers using WD. I haven't spend enough time using the i5 laptop to get a more complte idea of how well WD runs. But, as I said, from my very brief usage, it was very light.
With my middle-of-the-road machines I have to disagree. There is hardly any difference between NS and WD. True, a few programs take a second longer to open but I wouldn't call that slowing my machine.
It used to cause slowdowns on Core i7 920 at 4GHz and 18GB of RAM. And it's still doing that on Core i7 5820K at 4.5GHz, 32GB RAM and a super fast M.2 SSD cache. It's absolutely ridiculous.
@RejZoR That is ridiculous, and I really thought it would have performed better on fast computers. However, I guess it varies from one computer to the next. I haven't had a chance to use the i5 laptop again yet to see how it performed with more testing.
I was using WD on a machine with an old i3 330M @ 2.13GHz and there was hardly any difference between WD then and Norton now.