Microsoft Security Essentials is Microsoft's free anti-virus offering.It runs on Windows XP, Windows Vista and Windows 7, but not on Windows 8, which has a built-in AV component.

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Error activating Microsoft Security Essentials

I'm installing MSE on a XP Professional SP3 PC. After the initial install and update, an error pops up: Microsoft Security Essentials cannot start real-time protection This operation has been ...
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3answers
4k views

How can I stop Microsoft Security Essentials launching on startup?

Microsoft Security Essentials automatically installed/ran itself during our last Windows update. How can I turn it off? I don't want to uninstall it. I don't want it to run during startup. I don't ...
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2answers
3k views

Windows 7 hangs with 100% disk activity but only when online

I have the same problem as seemingly many other people here, and I think we might all be experiencing the same issue: a compatibility issue in Windows 7 between hard drive and network controller or ...
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0answers
32 views

Panda antivirus and MSE on one pc

I have a strange question, but first my story: Right now my AV is MSE. I like it but when I play games, sometimes it desides that it has to update or preform a scan. On my PC that causes a lot of ...
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3answers
29k views

Disable the Security Essentials End-of-Life Warning on Windows XP

Is it possible to disable the "Support for this operating system is ending" warning that the current version of Microsoft Security Essentials displays on Windows XP? Based on a quick couple of ...
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0answers
44 views

Prevent Security Essentials from creating a system restore point before definition update?

It is really annoying (and baffling) that Security Essentials always creates a system restore point before updating its definitions. There is no good reason to do this and creating a 2GB restore point ...
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1answer
42 views

Getting Microsoft Security Essentials to alert me when a threat has been found

Is there a way of getting Microsoft Security Essentials to alert me when a threat has been found? I recently went through the log tab of Windows Defender and found a number of threats in the ...
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2answers
2k views

Editing the Microsoft Security Essentials context-menu

As all MSE users would know, the context-menu item that it adds to Explorer is really long, with one whole sentence "Scan with Microsoft Security Essentials...". Is there a way to edit this and ...
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4answers
16k views

How does the performance of Microsoft Security Essentials compare with other Anti-virus products [closed]

Are there any solid data (i.e. benchmarks) comparing the performance of Windows Security Essentials with other anti-virus products? In particular, I'm interested in how much overhead it imposes on a ...
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12 views

How to ignore/suppress MS Security Essentials “Severe” alert? [duplicate]

I ran a full scan in Microsoft Security Essentials and it detected a number of "severe" threats, which I actually want to keep. The recommended action is "quarantine". It's also the only possible ...
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0answers
68 views

What's the best way to switch Antivirus software? [closed]

I currently run Microsoft Security Essentials (or whatever it's called these days). Recent reports of MSE's effectiveness have left me feeling worried and paranoid about the safety of my system. It ...
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0answers
28 views

In Microsoft Security Essentials how do you see the location of the detected threat?

MSE pops up saying the detected item, alert level, status and recommended action but doesn't say where the detected item is located. How do you find out? For example if it's in something I just ...
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4answers
22k views

How do I install Windows Defender/MSE on Server 2012?

On earlier versions of Windows client and server you could install Microsoft Security Essentials, free antivirus from Microsoft. In Windows 8 client, it is integrated into Windows Defender. However, I ...
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1answer
119 views

Windows 7 Can't uninstall Microsoft Security Essentials

to describe the problem as simple as possible, the company edition of Microsoft's Security Essentials called "System Center Endpoint Protection" is installed on my private computer and despite me ...
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0answers
26 views

In Security Essentials, how do I enable scanning of files previously restored from quarantine?

I had infected .htm files on a web server. I wanted to see the text of one of the files, so I could see the malicious code myself. However, whenever I would download one of the .htm files to my ...
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3answers
3k views

Microsoft Security Essentials Not Monitoring

When I boot into Windows Vista, Microsoft Security Essentials is set to run when the system starts. When I open the program, it says Microsoft Security Essentials isn't monitoring your computer ...
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6answers
4k views

How to keep Windows 7 from sleeping while scanning the PC

So, I've been using Microsoft Security Essentials lately. And it usually takes a couple hours or more for it to full scan my hard drive. Because of that, I commonly leave it scanning while I go do ...
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6answers
868 views

How did my computer get compromised?

How is it possible that my up to date install of Windows 7 with UAC enabled and Microsoft Security Essentials running became compromised, seemingly in a website drive-by? I've run ostensibly the same ...
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5answers
3k views

Does Microsoft Essentials work with AVG?

Do I have to get rid of AVG if I want to install Essentials on the new Windows 7 OS?
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1answer
245 views

Twin problems with Chrome and Microsoft Security Essentials

Woke up today and am getting this error from gmail: The webpage at ...
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1answer
52 views

Security Essentials scheduled scan less often than weekly

Is it possible to schedule Microsoft Security Essentials to do a scan less often than once per week? This is not officially supported through the UI (it only offers day of the week selection), but is ...
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2answers
5k views

Microsoft Security Essentials does not turn on at startup

Of late, MSE has stopped starting the real time protection on its own. I see the red icon in the tray. I tried to start the real time protection myself but I get an error code: 0x800705b4. I had a ...
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3answers
5k views

Why does Microsoft Security Centre show Virus Protection Disabled? Is it Important?

Microsoft security Essentials says my realtime virus protection is working, but the Microsoft security alerts says my virus protection is off. Which is correct and why do they contradict each other? ...
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3answers
6k views

Microsoft Security Essentials: How to Disable the 'Real Time Protection Is Off' Warning?

I decided to disable the "real time protection feature" of MSE. Now I have this little annoying "feature", that MSE keeps me informed that I have disabled "real time protection": the little red ...
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2answers
4k views

Difference between Malicious Software Removal Tool, WinDefender, Security Essentials?

What is the difference between these three products? Malicious Software Removal Tool Windows Defender Microsoft Security Essentials
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0answers
82 views

Why does context menu sporadically open behind taskbar?

Sometimes when I'm using Windows, it will go weird—when I try to change window using the taskbar it won't work but the taskbar will flash yellow. Windows will stay weird until I restart (or log off). ...
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44 views

Cannot download any files and Cannot read local html files

I have been working on one of the computers in my workplace, and I am completely stumped right now. The problem originated when the employee got back from lunch and she was unable to open a local HTML ...
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1answer
3k views

Disable MsMpSvc from command line

Quite simply I'm looking for a way to disable Microsoft's security essentials service from the command line, you used to be able to run the command (as admin) net stop MsMpSvc but that was somehow ...
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1answer
1k views

Microsoft Security Essentials is not genuine now

I installed MSE on several machines months ago, and these are legit systems with legit keys. However, as of today MSE is complaining. Windows did not pass genuine validation. Security Essentials ...
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395 views

Security Essentials (SE) hangs while scanning ProgramData folder

First I did a complete scan on C:\ and kept getting (after about 1.5M files scanned, which is at the end of the C:\ProgramData folder or the beginning of the C:\Recovery folder) Then, after ...
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2answers
7k views

Windows Defender vs. Security Essentials in Windows 8

What is the difference between Windows Defender on Windows 8 and Microsoft Security Essentials? They practically look alike, so is there a need to install Security Essentials?
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1answer
699 views

How do you exclude a file from MSE?

Microsoft Security Essentials has decided that a vbs script I wrote is a vbs/genmalone virus. How can I exclude that file from MSE without excluding everything in its folder or excluding all vbs ...
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1answer
74 views

How long should I wait for a virus to be removed before attempting to shut the process down and try again? [closed]

After a 7 hour scan of over 200GB of backed up information on my external hard drive MSE found a single virus Win32/cmdow.A within a rar installer of an open source expansion of a game .. and it has ...
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2answers
366 views

Is it possible that update of (MS) security essentials is blocking ports while updating?

Seem to have encountered an issue that I can't really resolve. I have a client trying to write to a stream on port 4530. This is a system running constantly, and when I got back to work monday ...
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1answer
504 views

How keep MSE from causing automatic backups to fail?

I have Windows 7's Backup configured to run every day at midnight. When it runs per this schedule, no UI pops up. It just runs. I'm also using Microsoft Security Essentials (MSE). From time to ...
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0answers
18 views

Windows Security-Center service always disabled and Microsoft Security Essentials won't start [duplicate]

Possible Duplicate: How do I get rid of malicious spyware, malware, viruses or rootkits from my PC? I'm not sure if I'm having some kind of infection on my mother's client. When I logged ...
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1answer
692 views

Windows Security essentials detected trojan in Hp Factory.wim [duplicate]

Possible Duplicate: Computer is infected by a virus or a malware, what do I do now? Security essential detected trojan:wind32/Anomaly.gen!A in containerfile: ...
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2answers
196 views

microsft security essentials last update definition time is messed up

It's been a while since my laptop lost track of time. I've been living with it so far, and I've developed a simple script to update computer time using an script every minute. But the problem is MSE ...
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1answer
593 views

Msmpeng.exe is Making Me Tear My Hair Off!

msmpeng.exe causes CPU spikes that happen every 15 mins or so, and it has finally got to me. As far as I can remember, I started facing this after installing MS Security Essentials on my Windows 7 ...
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1answer
103 views

Microsoft Security Essentials for small business

According to MSE licence "Microsoft Security Essentials can be used for small business up to 10 PC." But if my company has about 40 PC then what can i do? Can i have a option of purchasing MSE? Or is ...
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2answers
562 views

Security Essentials Update Script

Is there a way to write a batch file to automatically update Microsoft security essentials for Windows 7? If so, could you please help me write it?
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1answer
282 views

Why does Microsoft Security Essentials ask for a scan everytime I log on?

I have used MSE for some time now with great success. All of a sudden, starting 3 months ago or so, MSE calls for a scan every time I log on. It never used to do that and I am wondering why it does ...
40
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14answers
7k views

Would Microsoft Security Essentials be adequate protection? [closed]

Is Microsoft Security Essentials (MSE) adequate protection for my computer? What is the experience with this product? I found out about a comparison of AV Suites. MSE did VERY well. One that I ...
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0answers
28 views

How do I virus scan an individual file under Windows 8? [duplicate]

Possible Duplicate: How to add the Windows defender into Windows Explorer’s right click menu to scan a particular drive/folder/file on demand? From what I understand, Windows 8's version of ...
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2answers
101 views

How do I remove a root kit from Windows XP? [duplicate]

Possible Duplicate: How do I get rid of malicious spyware, malware, viruses or rootkits from my PC? I was looking for root kits following these instructions ...
1
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1answer
397 views

What anti-virus solution works with Windows Server 8 beta? [closed]

Testing out beta Windows Server 8. Would like to install a free antivirus, but MSE doesn't seem to support it yet and can't find one that does. Know of one?
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0answers
287 views

error 0x80070424 cant update my MSE in windows xp sp2

I was trying to update the MSE using windows xp sp2, but the error says "ERROR 0x80070424" what does it mean it says again "there's no internet connection" .. Can someone help me please?
7
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4answers
7k views

Remove the Microsoft Security Essentials icon

I've been using Microsoft Security Essentials on Windows 7 for sometime now and so far I don't have a bad word to say about it. I would like to permanently remove the MSE icon from the task bar and ...
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2answers
951 views

Stopping Microsoft Security Essentials

This used to work. However after a recent Windows Update it is no longer possible neither to use net stop command nor the services applet to stop this service. It also seems not possible to use ...
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1answer
1k views

How do I set Microsoft Security Essentials to prompt me on what to do when it detects a virus or malware?

How do I set MSE to prompt me on what to do when it detects a virus or malware? It seems that MSE's real-time protection only allows a default automated option when it detects a virus or malware. In ...