Security :: Cannot Update Windows Defender Virus Definitions

Mar 7, 2013

Today, when I opened the windows defender i saw my PC status at risk and when i tried to update it's virus definitions I couldn't complete, it says network connection but i could connect to website download anything without any interruption. I even tried to update virus definitions through windows update control panel but it was of no use. I had installed MSE on windows 7(i have a dual booting) . Did this action affect my windows 8 OS and how do i get rid of it.

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Security :: Windows Defender Not Updating Malware Definitions

Aug 10, 2013

Windows Defender won't update its anti malware definitions... as of now they are a few days old. Manually pressing the "update" button won't do a thing. Also, when trying to update from the cmd prompt, I am told that no update is needed since everything is up-to-date.

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Security :: Windows Defender Definitions - Not To Do A Full Scan

Mar 9, 2013

It is advisable not to do a full scan for the moment. There was a problem in the latest definition update and in some cases after doing a full scan, if it completes, Windows Defender has been turned off.

Microsoft is aware of the problem and is working on it.

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Security :: Windows Defender - Delete Virus - Rescue Data?

Nov 20, 2013

i have a problem with my USB stick: i've borrowed it to a colleague 20 minutes, and now, when he returned me i have a little surprize: instead of finding my personal data from faculty, i found these shorcuts, who turns out that are viruses (Windows Defender alerted me).

The stick was used in one of our laboratory class. I want to recover my data because i have about 1.5gb of files which are very important to me. When i scan the USB with Malwarebytes Anti-Malware, it detects nothing, but scans even my personal files, despide i cannot see them (even if i pick 'Show hidden folders and files' option), only Windows Defender finds the viruses.

Is it possible to delete the viruses and save my personal files (txt's, doc's and pdf's), without formatting the stick ?

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Security :: Can Defender Update Automatically On Its Own

Dec 30, 2013

I am a new Windows 8.1 user, having installed it on a new system build I did a couple of weeks ago. Prior to this, I was running Windows 7 and used Avast for my anti-virus, and Defender for the rest. I understand with Windows 8, Defender is really what MS Security Essentials used to be, which I had heard was pretty good.

I am somewhat of an advanced user, not an IT Pro by any means but have been a Windows user for many years and have never minded digging in and tuning it to my preferences.

So with this new build and Windows 8.1, I am thinking I will just stick with Defender for all my AV and Security needs. I am curious, is there a way to set Defender to download and install it's new Definitions updates on it's own? Without having that selected for all my windows updates? I prefer having Windows Update notify me when there are new udpates and letting me choose what and when to install them. That is one thing I liked about using Avast, it did that on it's own on pretty much a daily basis and I did not have to manually download and install them.

I took a look in Defender's settings and did not see one where I could set it to do those updates for it automatically.

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Security :: Rescue Data From Virus HDD

Nov 19, 2013

I have a external HDD, which probably have some viruses. because:

I had virus on my PC, no antivirus could see it and tried quiet a lot, and chose fro the bests,but my PC always froze, im having two HDDS in my computer and if i removed on formatted the first reinstalled windows it was good when i connected the second it started freezing so im 100% sure i had virus.

So started windows safe mode, and backed up some very important files, mainly school documents and projects to external HDD in safe mode,

Now i need some of the files back, what should i do? If i boot up the Linux or BSD and copy here the important files back and then format the hard-drive?

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Security :: Scripted Virus Cannot Be Deleted?

Feb 21, 2013

When I connected my memory card to laptop then the folder with some strange name appeared and when i tried to open then it said that extension is wrong, when i tried to delete it then no response is found and folder remains as it is. i tried to scan the card by latest KIS antivirus then this antivirus says no threat found. so what to do. i have attached the pic of that drive too.

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Security :: Turn On Virus Scanners?

Jul 10, 2014

It tells me that I need to turn on my ivrus scanner.

I click the button to activate it and nothing happens. Here is a video of this issue:

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Security :: Virus Partially Disabling PC In Different Ways

Jul 9, 2014

Since about 4 days, I'm having various problems primarily on the internet.

1) All sorts of downloads from the internet first load normally, then stop at 99% and usually dont finish, some end 5 minutes later, resulting in a damaged file. Example: Downloading a song this way makes it randomly jump parts of the song in short intervals (a song of 3:50 minutes would then be in my itunes with a duration of 3:46 due to the random jumps); downloading CCleaner and similar programs did not work at all (not even a damage file).

2) Pictures on the internet become "puzzled" and colors change randomly. Example:

3) Only tested this on youtube - videos load 10x slower than before the issue + some flash plugin keeps crashing (also never happened before - even with 50+ tabs).

4) Frequently sites do not load (they stay white).

5) A "firefox update recommendation" and a "flash player update site" with untrustworthy URLs often randomly open, sometimes even 5 times in 5 seconds + I suddenly get overloaded with random advertisement from the left, bottom and right screen sides.

THE PROBLEM WAS A PLUGIN CALLED "NET-CRAWLER" >uninstalled it, and everything worked out.

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Security :: Got Virus / Reset Computer / Won't Start

Jun 7, 2014

I have a serious problem with my computer i got a virus that deselected my graphics card and wouldn't allow me to go in bios so i thought that a factory restore would do it, unfortunately i was wrong. It turned off the computer and when i try to start it it just goes to a black screen for about an hour then goes to like some kind of power save mode where the power button is flashing and i tried to turn it on again and the same thing happened. My screen works just fine but it says it dosen't get any input so my computer just isn't displaying anything. I am really scared and don't know what to do?

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Security :: Action Center Says Virus Protection Turned Off

Jul 26, 2013

I recently had to do a factory restore on my system. I reinstalled Norton Internet Security using the existing product key I have. Today my action center says virus protection turned off;

I hit view Antivirus apps and this comes up

I click on Norton Internet Security then click turn on, this is what pops up

I click on yes, I trust this publisher to run this app, However nothing happens. It still says that Norton Internet Security is turned off. I went into Norton Internet Security, it says that my system is secure and even ran a full system scan for good measure.

Is there a reason why action center is saying that antivirus protection is turned off?

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Security :: White Screen Virus Stuck In Safe Mode

Mar 8, 2014

I guess I have that white screen virus. I think I could handle removing it but I need the desktop and safe mode is stopping lots of tricks. But I cannot get to anything.

Sys restore fails everytime.

how the heck do I fix this.Without reinstall.

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Security :: Windows Defender Activation

May 15, 2013

I too got rid of Norton, but I still have another a/v suite on my Toshiba laptop. Should Windows Defender be activated? A tech person at the company told me there would be no conflict, but that it's up to me.

In general, is it a good idea to have both running?

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Security :: Cannot Turn On Windows Defender

Mar 1, 2014

I have recently built a PC myself and had no issues whatsoever, until the other day when an Action Centre notification popped up. For some reason, Spyware and Virus protection have both turned off automatically and when I am prompted to turn them back on, I get an error saying "Action Centre can't turn on Windows Defender. Please try again later."

I have tried the services.msc method and tried to activate WinDefend that way, but encounter another error "Windows could not start the WinDefend service on Local Computer. Error 2: The system cannot find the file specified."

I have looked up this issue with no resolution yet - as most of the solutions are for people that have installed third party Protection Programs like AVG, Norton etc.

I haven't installed any programs like that, and have also checked in the Control Panel to make sure one didn't install itself automatically with an install of another program.

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Security :: Why Does Windows Defender Want To Scan PC So Often

Jan 2, 2014

Why does Windows Defender want to scan my PC so often? I have it scheduled to scan daily at about 2:30 AM. Sometimes after about 4 hours it says I need to scan.

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Security :: Windows Defender Not Updating

Nov 24, 2013

When I click update on windows defender, it just closes and won't update?

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Security :: Uninstall Defender From Windows 8.1?

Jan 4, 2014

It's already disabled but it still occupies some space nd maybe it's part still running in background. Once I had some instructions about uninstalling Windows Messenger from XP by hacking come config file and showing the component in Add/remove Windows features dialog. But i don't remember how this was done. Now need the similar thing about Defender and Security Central and UAC if possoble.

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Security :: Firewall To Go With Windows Defender On Win 8.1

Jan 10, 2014

I have win 8.1 and use windows defender and have been using the windows firewall but i never get any promps for outbound stuff so was looking for a better firewall to use what is a good one to use with the built in windows defender Someone told me comodo firewall was a good one.

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Security :: Windows Defender Turned Off

Oct 19, 2013

It says it's been turned off and it's not monitoring the computer, I can't turn it on either unless I'm not doing something right. McAfee internet security suite was on the laptop when I brought, is it because of that? Should I just remove it?

Is windows defender good security on it's own or do I need more than just that? I've downloaded malwarebytes anti-malware?

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Security :: Windows Defender Keeps Turning Off?

Feb 16, 2014

I was using Avast, and I suspected it might be causing me certain issues, so I uninstalled it, and presently I use Windows Defender for active protection, and Malwarebytes free edition for scans.

problem is that Defender periodically turns off, and then I get an error message, and I have to turn it back on again.

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Security :: How To Turn On Windows Defender

Jan 13, 2014

cannot turn on windows defender. just get message box saying turned off.

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Security :: Win 8 Pro - How To Turn On Windows Defender

Nov 1, 2012

I'm using Win 8 Pro and I went to check my Windows Defender via 'all apps'

When I click on it I just get the following message...........

"Windows Defender has been turned off and it isn't monitoring your computer"

I've tried a few things but seem to come up with the same message whichever way I try to start Defender. obviously I'm a bit worried that my machine might be unprotected.

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Security :: Windows Defender Turned Off

Dec 9, 2013

My Windows Defender is turned off. I was able to click around enough until I found an area that told me that McAfee is controlling this. I don't want McAfee. But when I try to bring up or right click on Windows Defender I get a pop up that tells me it is turned off and it won't let me do anything.

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Security :: How To Completely Disable Windows Defender

Aug 27, 2013

So I've been running the 8.1 Pro Preview since it went live, and I gotta say, I'm pretty happy with it overall, one thing that's bothering me though is that I can't seem to find a way to disable Windows Defender completely through either gpedit.msc or services.msc (it's grayed out).

In 8.0 there was a setting for disabling Defender completely through gpedit.msc, now in 8.1 they added a bunch of new settings in the Defender tab but none that clearly states the disabling of Defender, maybe I'm missing something here?.

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Security :: Windows Defender Potentially Unprotected?

Feb 25, 2014

I opened Windows Defender, and it said "Potentially Unprotected" scan hasn't been ran in awhile. but I got it set to automatic scans everyday, I ran a scan and it still says the same thing.

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Security :: Can't Locate Windows Defender To Activate

Apr 12, 2014

how to retrace my steps to manually reactivate. I have gone to Windows 8 forum (Windows Defender - Turn On or Off in Windows 8) & followed the steps...but Windows Defender is not appearing in my action center...when I go here it shows my antivirus & everything on. There's no option to expand the "security" settings to locate windows defender.

Everything else I do turns up a notification that the app is "off"; but it doesn't give me an option for turning it on. Once again I'm lost in the dust of Windows 8 & it's embedded features...where I locate windows defender to turn it back on...otherwise I'll go the simpler route & just leave things "as is" & download iobit malware fighter or something. However, I've found that I have sporadic issues with Iobit Malware fighter where it works for awhile & then for some reason after a time it won't launch.

I find I'm rather routinely having to uninstall & re-install it. Is it a compatibility glitch with Windows 8.1? Cause Iobit website insists that their malware fighter coincides with all versions of Windows 8. Or should I even be concerned about the malware fighter...I have super antispyware...but it's not a program that is automatically active. My windows security center seems to be compensating with AVG antivirus in place of a malware program. I wasn't aware there was any anti-malware or spyware embedded in AVG?

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Security :: Windows Defender Schedule Scan?

Sep 15, 2014

windows defender schedule.JPG (88.4 KB)

I am trying to do a windows schedule scan, but when I set it I am getting this (see attached)

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Security :: MCafee Versus Windows Defender

Aug 20, 2014

I am currently using Windows Defender in both of my home PCs. My ISP (Cablevision aka Optimum Online) now offers the full McAfee AV suite for free.

Looking at some test data, McAfee is not the greatest, but it has a better protection rates than WD. It is also said to use more system resources than other AV suites.

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Security :: Windows Defender Keeps Telling To Scan Now?

Jun 21, 2013

For some odd reason WD keeps telling me I need to do a scan (it's in orange in WD) even though I do a scan everyday via the Task Scheduler. After any kind of scan it resets itself (I don't need to scan, green in color). Some time period later it tells me a scan is needed.

Is there some option that controls how often WD tells you to do a scan?

This started happening about a week or so ago. I don't have anything running on my system that IMO is doing this.

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Security :: Windows Defender 0x800106ba Error

Mar 9, 2013

I have problem with windows defender on Windows 8. When I start system check, it goes to half and a windows defender service stops. It shows error 0x800106ba service stopped. Service is set to start automatically under LocalSystem account.

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Security :: Schedule Windows Defender To Run Daily?

Feb 13, 2014

i have to run windows defender manually, can i set it up to run daily on its own

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