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Old 01. May 2019, 08:34 PM   #1 (permalink)
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Default Windows Defender

Does Windows Defender have serious system impact? Will it slowdown my PC. I'm running Win 10 all updated, Intel Core2 Duo, 2.33 GHz and 8.00GB RAM. Thanks.
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Old 01. May 2019, 10:06 PM   #2 (permalink)
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Quote:
Originally Posted by Wepynx View Post
Does Windows Defender have serious system impact? Will it slowdown my PC.
No.
Microsoft's programs included with Windows has always been low on system resources.
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Old 02. May 2019, 01:13 AM   #3 (permalink)
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Thank you EldonW.
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Old 02. May 2019, 12:11 PM   #4 (permalink)
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I have Windows 10 32-bit with 4 GB of RAM. My experience is that Windows Defender does slow down my PC a bit.
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Old 02. May 2019, 12:58 PM   #5 (permalink)
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I have always found it better to remove Defender and replace it with a decent third party tool.
Defender has never been known as anything other than a "better than nothing" tool even by MS.
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Old 02. May 2019, 03:56 PM   #6 (permalink)
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Originally Posted by Burn-IT View Post
Defender has never been known as anything other than a "better than nothing" tool even by MS.
Not any more.
Have a look at this comparison.
https://www.av-comparatives.org/comparison/

Unfortunately, the 36 false positives spoil the glory.
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Old 02. May 2019, 10:23 PM   #7 (permalink)
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Originally Posted by Burn-IT View Post
Defender has never been known as anything other than a "better than nothing" tool even by MS.
I've never heard that from any official source at Microsoft so it would be good to provide a source reference for such a disparaging comment.

Microsoft's stated intentions have always been to provide a much higher level of protection than you've stated. And that goes all the way back to their purchase of Giant anti-spyware in 2004:
https://news.microsoft.com/2004/12/1...giant-company/

I think that you're probably confused about the Microsoft products. The AV Comparatives report that @EldonW links to is for the current anti-virus product rather than the original anti-spyware product which this topic is about.

Windows Defender is the name used for at least three different products:
  1. The original Windows Defender from 2005 was only anti-spyware for Windows XP and later for Windows Vista and 7. From 2009, Microsoft Security Essentials (MSE or MSSE) provided anti-virus for Windows 7
  2. Windows Defender for Windows 8 was an anti-virus that used the same definition files as MSE.
  3. Windows Defender Antivirus for Windows 10 supercedes both MSE and Windows Defender for Windows 8.
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Last edited by Remah; 02. May 2019 at 10:26 PM. Reason: Clarify that this topic is about Window 10 Defender Antivirus
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Old 03. May 2019, 07:48 AM   #8 (permalink)
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Quote:
Originally Posted by Remah View Post
The AV Comparatives report that @EldonW links to is for the current anti-virus product rather than the original anti-spyware product which this topic is about
The user is running Windows 10. Therefor this topic is not about the original anti-spyware product.
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Old 03. May 2019, 04:20 PM   #9 (permalink)
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I use Defender, haven't used anything else for years and never noticed it causing any slowdowns. And on a PC with the specs that the OP has posted there shouldn't be any problem. In all honesty, I've never had an issue while using it with Win10.
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Old 03. May 2019, 06:51 PM   #10 (permalink)
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Windows Defender comes on whenever I uninstall Avast to install a new version. There is noticeable slowdown in the system, which I don't feel when Avast is installed. Specially, when I open a folder with exe files, there is a lag.
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