Coincidence Or Accident? Microsoft Security Essentials Bug Rendering XP Machines Hamstrung Like A Virus - HotHardware
Coincidence Or Accident? Microsoft Security Essentials Bug Rendering XP Machines Hamstrung Like A Virus

Coincidence Or Accident? Microsoft Security Essentials Bug Rendering XP Machines Hamstrung Like A Virus

Since its release back in 2009, Microsoft Security Essentials has become a respected anti-virus / anti-malware solution. Even I, someone who never went out of their way to run such a solution, used it from the get-go due to its solid design and effective scanning. The fact that it was a cost-free solution sure didn't hurt, either. As it is today, though, there are many out there starting to wonder if MSE is all it's cracked up to be. And Microsoft has backed away from the product as of late it seems as well.

Hot on the heels of Microsoft's retirement of XP, users are reporting some rather severe issues with their boxes, caused by the company's security suite. While no data is at risk, and the OS remains operable, if stricken with this bug, you'd swear that you've actually contracted a virus. The PC will be slow, "down to a crawl" as one Google+ user has said.

Further, errors related to "MsMpEng.exe" might also arise on boot, and this is the process that needs to be killed in order to regain normality with your PC. To disable MSE, you can go to your Windows run line (Win + R), type "services.msc" without quotes and hit enter, then scroll down to "Microsoft Antimalware Service". Once found, right-click it, go into the properties, and then choose "Startup type: Disabled". After a reboot, MSE will stay clear, and your PC should be back to normal. Note that you may have to boot into Safe Mode in order to successfully complete this disabling.  You can also uninstall it via the standard Programs and Software control panel.

If this is a widespread issue, and hints are leading us to believe that there are many out there battling it, we can't help but wonder what Microsoft is going to do about it - if anything at all. After all, with XP dead on the consumer side, it has no responsibility to continue updating it at all. If Microsoft does decide to patch it, we'd imagine users could go online and download the most up-to-date version of MSE, as it's not exclusive to XP.

Still, what a coincidence. If you're still running an XP box, have you been bitten by this bug?

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But if you are going to disable MSE, wouldn't it be better just to remove it and use something else?

And yes, as a matter of fact we had a client come in the shop today with this exact error message.

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I got a panicked call late last night regarding this.

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Sounds like an ~AVAST free version~ moment!

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Imagine that..and they have the solution

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I rather Antivir

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Yesterday 16 april I'have incredible day. Thanks Microsoft!!!

Abour 100 work stations with WINDOWS XP SP3 and 4!!!! windows server 2003 R2 was stopped througt this NICE update for antivirus.

computer got red alert message about "MsMpEng.exe" and begin to freezze about 10-20 min.

Trying to update MSE does not effect.

so I find the best way to solve this problem - UNINSTALL mse at the workstations.

Servers MSE still alive, becouse last night MSE got new updates and problem with msmpgeng disapeared.

So, As I undersand Microsoft begin "to PUSH" users of old OS for upgrade ti new systems.

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It's not just MSE but SCEP 2012 also did this to 2003 Servers recently at my work. Affected engine version was 4.3.220.0 I believe. I'm not sure if it was a specific virus definition that caused it or if it's been going on a while and I just noticed it. Easily fixed with updating the engine version at least.

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happened to me this morning at work' computer right after I downloaded a torrent, was scary.

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I am still in the grip of this , which started last night, it wont let me remove MSE in safe mode but I have now been about an hour to get to the add remove programs box (takes an eternity for each step) and it still hasnt populated the box for me to do anything. Its Bl@@dy frustrating!

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I think the problem was with 1.171.136.0 (now there is a download for 1.171.142.0). I managed - purely by waiting - to get to task manager and shut down the two offending processes. I then ran the 136 file which I download locally and it installed ok. Rebooting gave (after a lot of whirring and clanking) a stable machine(s) again and the 142 downloaded and installed automatically OK. If you can get it running at all then you can probably run the current 142 download locally and "jump" over the 136 version.

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Anybody know where I can download the LAST version of MSE for XP?

I mean 1.171.142.0 fuul version for install.

Thank much!!!

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Anybody know where can I download the LAST version of MSE for XP?

THANK SO much!

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Please consider all factors. If you install some of the free software out there, think what else you are getting. Do not accept any extra free apps like Regclean, or PCspeedup. This and other anti-virus ware is just fighting with your system. As all experienced users know, you can't have two anti-virus captains on the same ship.

Auslogics Boostspeed is a great start for performance. Ashampoo is also an alternative in anti-virus. I personally like the Security essentials as it is light, fast, aggressive, and has caught all the garbage I could throw at it on an isolated system. Also, consider a more up to date computer.

i7, 8 gig minimum ram, 5 gig minimum video, and seriously SSD cloned with your original OEM HDD (that's all partitions!). That is just in a laptop. Wear a seatbelt.

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In reality you had to disable the behavioral scanning to avoid the high resource use caused by the KB. An update to fix this on an *unsupported OS* was out in hours though

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Our company felt this issue. We had several computers hit though not all of our XP machines saw this error.

The good news is that it is just the latest version of the definitions that is the trouble. This problem is easily solved by installing the beta version of the definitions.

Likely this will be resolved by MS releasing the next definitions a little quicker than usual. No need to uninstall.

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Does this mean the IRS is stopped in it's tracks? Humm, rite after TAX day!!!...

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Thanks so much for posting this. I have XP running on an older PC networked with a another computer and got this bug on the XP side. It was mostly accidental that I even discovered that it was tied to Microsoft Security Essentials but it locked me out and could not do anything on this PC. It was completely unresponsive. I could not remove the program from the control panel because it would not even list the programs.  It locked up the pc so the only thing I could do over and over is a hard reboot. 

I could not even remove the program in safe mode. It thought I was trying to install it rather than remove it. I'm not a IT person so through some research, found your article and was able to Disable it in safe mode. But even though It returned my PC to normal, I still can't remove the program through normal channels. I am getting an error about a resource directory where the file is located. I'm just happy I could disable, so thanks for posting this tip. 

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Thanks for posting this tip for I am also a XP user. etui galaxy s5 housse galaxy s5

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