Windows 7: Windows Security Center can't be started because of virus/malware

It's a bit problematic to contact the school (as it is on another continent... ), but maybe they are willing to send me the password by mail. If not; are there any ways to change/remove this password?

Today I got a popup message saying that avast! had been deactivated I opened avast! manually, and it said that the real-time protection was running so I'm a bit confused. I am now running a full scan to check if the program can come up with some virus/malware. Any suggestions on what to do? I would be greatful

Crumble,

Are you also running SuperAntiSpyware, by any chance?

Try a repair of avast!:

Go to Control Panel > Programs & Features > uninstall a program, select: 'avast! Anti-Virus

Click the Uninstall/Change, and select: Repair

Reboot after the repair.

No, I'm not running SuperAntiSpyware.
The popup message said that both Windows Defender and avast! have been deactivated. Maybe the combination of these two programs caused this? I remember reading somewhere that you should only have one anti-virus program at a time, and I didn't know that I had the Windows Defender too.
The avast! full scan came up clean, and the program seems to be working. That's why I get confused when my computer tells me something else
The security center is still active though
The reparation of avast! was successful, but when I click the "Turn on now" next to the message in the Action Center that says avast! is deactivated a popup message appears asking "do you trust this program?". I then click yes, but the program doesn't start. I can start it manually though but the message "avast! has been deactivated" is still present in the Action Center even though avast! itself tells that all protection is turned on and everything is fine.

Will have to do some checking, and get back to you. I'm about ready to call it quits, gotta get some ZZzzsss.

Thought that Windows Defender was not an AntiVirus, but an AntiMalware program. There is a difference.

However, in Windows 8, WD evolves into an AntiVirus program.

The following is an free application you may want to keep and use once a week to keep the computer clean.

Please download CCleaner:
Redirecting...

Double-click the downloaded setup file.
Under Install options, uncheck everything except:
Automatically check for updates to CCleaner
Click: Install

On the next prompt, uncheck: Release notes
If it gives you the option to install Chrome, or anything else, uncheck the box next to it.

Run CCleaner...

Please obtain a list of installed programs:

1. Click the Tools icon on the left.
2. In the Uninstall screen, click: Save to text file...
3. Select a location (Desktop) for the text file (the default name is install.txt)
4. Click: Save

The install.txt opens in Notepad. Please provide it in your reply.


Now, click the Cleaner icon on the left.


Under the Windows tab...
Keep the checks in Internet Explorer and Windows Explorer as they are.

Under System, check:
Empty Recycle Bin
Temporary Files

Under the Application tab, keep the items as they are.
Click: Run Cleaner

When done, close CCleaner.

Greetings Crumble,

Sorry that you are getting conflicting info from your computer. When you see popups like that or when you just want to show us stuff without having to type a lot to describe it - you can use the info in this tutorial to post a screenshot of what you want us to see: Screenshots and Files - Upload and Post in Seven Forums

Here is a description of Windows Defender as it applies to Windows 7:
Windows Defender - Microsoft Windows

Microsoft (unwisely?) named another product Windows Defender Offline:
What is Windows Defender Offline?

Like cottonball mentioned, Windows Defender is a full blown antivirus tool in Windows 8. Some have speculated that this is for some EU legal reasons.


I updated (via Windows Update) the list of things that Windows Defender looks for and then I installed and updated Avast. The two of the seem to be getting along just fine (as they should). If Avast did not want Windows Defender to run, it could simply disable it. Other antivirus tools disable Windows Defender without any problems... so this tells me that Avast expects to get along with Windows Defender. Here is the version that I have:


I did a repair of Avast (even though it was working for me) and I did not see any issues. My Action Center has no messages - even when I disable the 8 parts of Avast - so I cannot test that.

:::back to lurking:::

I didn't know there were a difference between anti-virus and anti-malware programs - when it comes to computer issues I'm an amateur

Here is the install.txt:

Adobe AIR Adobe Systems Incorporated 07.12.2012 3.4.0.2710
Adobe Flash Player 11 ActiveX Adobe Systems Incorporated 08.02.2013 6,00MB 11.5.502.149
Adobe Flash Player 11 Plugin Adobe Systems Incorporated 08.02.2013 6,00MB 11.5.502.149
Adobe Reader X - Norsk Adobe Systems Incorporated 23.05.2011 112MB 10.0.0
Adobe Shockwave Player 11.5 Adobe Systems, Inc. 24.09.2012 11.5.9.620
Apple Mobile Device Support Apple Inc. 22.01.2013 24,5MB 6.0.1.3
Apple Software Update Apple Inc. 25.09.2012 2,38MB 2.1.3.127
Apple-programsupport Apple Inc. 22.01.2013 65,0MB 2.3.2
AuthenTec TrueSuite AuthenTec, Inc. 20.05.2011 6,54MB 2.0.0.57
avast! Free Antivirus AVAST Software 12.02.2013 7.0.1474.0
AviSynth 2.5 26.09.2012
BitTorrent BitTorrent Inc. 25.09.2012 7.7.0.27987
Bonjour Apple Inc. 25.09.2012 1,02MB 3.0.0.10
CCleaner Piriform 23.01.2013 3.27
ConvertHelper 2.2 DownloadHelper 25.09.2012
DVD Decrypter (Remove Only) 26.09.2012
Google Chrome Google Inc. 07.10.2012 24.0.1312.57
Google Drive Google, Inc. 01.02.2013 16,0MB 1.7.4018.3496
Google Toolbar for Internet Explorer Google Inc. 15.12.2012 7.4.3607.2246
iTunes Apple Inc. 22.01.2013 189MB 11.0.1.12
Java 7 Update 11 Oracle 18.01.2013 128MB 7.0.110
Java(TM) 6 Update 35 Oracle 25.09.2012 95,7MB 6.0.350
Malwarebytes Anti-Malware versjon 1.70.0.1100 Malwarebytes Corporation 19.01.2013 18,4MB 1.70.0.1100
Microsoft .NET Framework 4 Client Profile Microsoft Corporation 20.05.2011 38,8MB 4.0.30319
Microsoft .NET Framework 4 Client Profile NOR Language Pack Microsoft Corporation 20.05.2011 2,93MB 4.0.30319
Microsoft Office Outlook Connector Microsoft Corporation 16.01.2013 3,37MB 14.0.6123.5001
Microsoft Office Professional Plus 2010 Microsoft Corporation 27.09.2012 14.0.6029.1000
Microsoft Silverlight Microsoft Corporation 26.11.2012 62,5MB 5.1.10411.0
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729 Microsoft Corporation 26.10.2012 608KB 9.0.30729
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.4148 Microsoft Corporation 01.02.2013 224KB 9.0.30729.4148
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.6161 Microsoft Corporation 01.11.2012 600KB 9.0.30729.6161
Microsoft Visual C++ 2010 x86 Redistributable - 10.0.40219 Microsoft Corporation 13.10.2012 14,2MB 10.0.40219
Min CEWE FOTOVERDEN CEWE COLOR AG u Co. OHG 26.10.2012 231MB 4.8.5
Mozilla Firefox 18.0.1 (x86 en-US) Mozilla 20.01.2013 44,1MB 18.0.1
Mozilla Maintenance Service Mozilla 20.01.2013 330KB 18.0.1
Skype™ 6.0 Skype Technologies S.A. 29.11.2012 20,3MB 6.0.126
Synaptics Pointing Device Driver Synaptics Incorporated 20.05.2011 46,4MB 15.0.24.0
Tweaking.com - Windows Repair (All in One) Tweaking.com 28.01.2013 1.9.6
Videora iPhone Converter 6 Red Kawa 26.09.2012 6
Windows Media Player Firefox Plugin Microsoft Corp 18.01.2013 296KB 1.0.0.8
WinPcap 4.1.2 CACE Technologies 16.01.2013 4.1.0.2001

avast! AntiVirus is insatlled, and so is Malwarebytes AntiMalware. So, you are good.


Thanks for the info, UsernamIssues.

Came up with the same...Windows Defender (WD) is an AntiSpyware program in Windows Seven.

Also, early on, from Post #4, FSS shows that WD has been disabled:
Windows Defender:
==============
WinDefend Service is not running. Checking service configuration:
The start type of WinDefend service is set to Disabled. The default start type is Auto.
The ImagePath of WinDefend service is OK.
The ServiceDll of WinDefend service is OK.

Looks as if we all have the same version of avast!

On avast! deactivated in Action Center although avast! is running windows seven issue...

Please follow these instructions:
https://support.avast.com/index.php?...articleid=1501
They deal with the issue of Action Center in Windows 7 reporting that antivirus program cannot be found on the computer although avast 7.x is completely installed and fully active.

Read them first, and, if you have any questions, let us know.

If, after you are done, the same problem appears, then, uninstall avast!
Use the following:
avast! Uninstall Utility | Download aswClear for avast! Removal

Once the program is uninstalled, an the computer is restarted, install avast! once again, and let us know how it is going.

I had Avast just literally chit the bed in her Windows 7 Home Premium computer one day, it just wouldn't run. Did a whole bunch of uninstalling reinstalling, googling, forum reading, cussing and couldn't figure out what happened nor could I get it to run again.
The avast in my Windows 7 Ultimate works just fine so I dunno.
Ended up installing MSE on her computer and just gave up on why Avast stopped working on her comp that day.