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Microsoft Security Essentials (MSE) not Updating Definitions.

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MrOats

For some odd reason, my MSE isn't updating. Yes I have a genuine version of Windows. I'm running Windows 7 Professional, and I have a internet connection of course. The last time it was updated was 2 days ago, and whenever I hit the update button it show's that it's starting update, but a second later it just switches back showing the button again.

11 years ago*

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18 Comments
Raik

I have the same problem. :(

11 years ago
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MrOats

When's the last time it said it was updated?

11 years ago
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NobodyMK

I have the same problem mine is last updated on 1/20/13 11:27pm Eastern Time.

11 years ago
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Drumoff

Everything works fine for me, Vista Home premium.

11 years ago
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MrOats

It must of fixed itself. This was happening just a few days ago. If I get anymore responses like this, then I'm closing the thread.

11 years ago
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cg
(Administrator)

Same here. Connection error with Windows Defender on Windows 8 starting today. Last updated on Jan 14th.

11 years ago
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MrOats

Achievement unlocked! Have cg post on your thread! Lol
Windows Update seems to be working itself.

11 years ago
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MrOats

Well anyways, I found a manual download for MSE definition updates, if anybody wants it, here.

To install just Run as Administrator and you're set.

11 years ago
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SaiBork

To be honest, MSE used to be good, but the last couple of months it has been the worst in independent tests. I myself use Avast, it has a free version which works great and I haven't noticed any performance issues with it either.

I would link a source, but I am unable to find this at the moment. I believe http://www.av-comparatives.org/ is one of the links, but I am currently not able to visit this website.

11 years ago
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MrOats

Well I have have Malwarebytes for the scanning mainly. I mostly have MSE for the active protection.

11 years ago
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SaiBork

That's the problem, it doesn't pick up on a lot of 0-day stuff. Which is most of the time why you have active scanning. And also why you want it to be updating ;)

11 years ago
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MrOats

So that it can be updated? Wouldn't you want to update steam for some new community features and what not?

11 years ago
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MrOats

Refer to the 3rd post to update your MSE or Windows Defender! Or click here if you have Steamgifts Plus.

11 years ago
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Yokuo

Even if they don't have SG Plus, people can click that link and go where you intended for them to go.

11 years ago
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MrOats

Oh! Didn't know that, thanks!

11 years ago
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sabin1981

Same here :\ Thanks for the manual update link.

11 years ago
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MrOats

Your Welcome!

11 years ago
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Yokuo

Looks like mine updated itself a few hours ago, but now it won't when I try to (probably because it's up to date). I don't know what to tell you other than manually update it like you have and wait it out.

11 years ago
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Closed 11 years ago by MrOats.