Windows Defender - Application not found (in Windows 7 professional OS)

Hello

I have a computer running on Windows 7 Professional on my place of work. However, Windows Defender does not seem to work properly because it cannot be opened when searched for in the START Menu and the Windows Defender icon is not correct (please refer to the screenshot below):

Probably, I suppose that someone had deleted the Windows Defender software before I used the computer.

I would like an active Windows Defender to protect your computer. If all goes well, it can be fixed or re-install the software on the computer.

Please, can someone help me with the correct solution?

Thanks in advance,

Jenn

By your screenshot, it seems you have installed MSE (Microsoft Security Essentials).  The first icon beside the ORB start.  If it is enabled, the Defender must be disabled.

MSE is supposed to disable Defender when it is installed.  They should not be run at the same time.

There are a few explanations here:

http://answers.Microsoft.com/en-us/protect/Forum/MSE-protect_start/Windows-Defender-and-Microsoft-Security-Essentials/5309cb8d-02e1-40E8-974f-0dcedb9ab9fd

Tags: Windows

Similar Questions

  • I try to open most of the icons in my control panel, I can get the message: application not found c\windows\system32\rundll32.exe.

    How can I fix it so I can delete unwanted programs? I try to open most of the icons in my control panel, I can get the message: application not found c\windows\system32\rundll32.exe.

    Please press Crtl + Alt + Delete key on the keyboard. Now, you will get a new manager called tasks window.

    Now, please hold down the CTRL key on the keyboard and click file, new task on the Task Manager.  Now, you will get a new black window. Copy the following and paste it into the black command window and press ENTER. Restart the computer.

    Assoc .exe = exefile

    Assoc .lnk = lnkfile

  • Windows Update "Application not found".

    When asked to windows update in Control Panel and then it indicates that the 4 "application not found" security updates keep being loaded whenever I turn computer and forces another install when I stopped 0x8000706BE error code.  The security updates that keep relocation are KB2633880; KB2656352; KB2572073; and KB25188864.

    I'm not high on the list of the "computing", so don't understand is not complex responses.

    Thank you

    [You can print these instructions for reference offline. [If a step said to restart, restart! ]

    1. click right on the following link to download the Norton removal tool, save it to your desktop: ftp://ftp.symantec.com/public/english_us_canada/removal_tools/Norton_Removal_Tool.exe

    2. close all open applications (that is, anything with an icon on the taskbar).

    3 restore all backups "Little Registry Cleaner" & restart.

    4. double-click on the file that you saved in #1 above to run the utility. DO TAP not your keyboard until the race ends, then reboot again.

    5. open Internet Explorer (only!) to http://support.microsoft.com/kb/923737 & run the difficulty.

    Note => for best results, check the option Remove personal settings .

    6. IMPORTANT - don't SKIP THIS STEP! Open Internet Explorer (only!) to http://support.microsoft.com/kb/910336 of => [ignore the title & symptoms].

    6B. do disappear/close the automated help pop up. then...

    6. run difficulty he 50202 in DEFAULT modes and AGGRESSIVE. [1]

    7 restart once again.

    8. open Internet Explorer (only!) at http://windowsupdate.microsoft.com . Select CUSTOM and scan | See if you can install all the available now security updates (for example, KB2633880;) KB2656352; KB2572073; KB2585542).

    Note-online if an update of the root certificates is listed under the category of updates software optional on the left side of the scan results window, installed to take full advantage of IE8 security. [3]

    Tip-do NOT install any other updates online software optional or any optional hardware updates.

    9. in response to this post with a status report.

    Good luck!

    ==================================================
    [1] full Disclosure: the difficulty operating in AGGRESSIVE mode will remove your update history but not list the updates installed in Add/Remove programs.

  • Windows Firewall and Security Center will not be open - Application not found

    When I right click on my computer then properties, I get an error message "Application not found c:/windows\system32\rundl32.exe.

    In Control Panel, when I click on the Security center and windows firewall, I get the same thing.

    In the past, when I click on the above, the properties come with several tabs and the info on my computer and the firewall came to show if it is on or off.

    I recently downloaded by Comcast Norton Security Suite. I don't know if this happened before or after that.

    Also, I had something like 'XP Active something' burst by saying I had someone trying to hack into my computer and I might have a virus and run a scan now that I did. He came in saying that a list of things have been found and set up a page where I can buy protection for $59.99 per year. I did that and I who sold his to run a scan with Norton. It showed that she had blocked a Trojan horse and had several blocks of attempts to access my computer.

    Can someone please tell me what to do? I am not very computer English savvy, so simple and clear please.

    Thank you!

    Hi, it seems that you have an infection of malicious software on your computer, the best way is to run the Security Scanner

    just to go to http://safety.live.com and run a full scan service.

    Info on how to make it work just watch this tutorial

    http://www.YouTube.com/watch?v=NgH43lmxl-Y

    answer please if you have a problem

  • When I try to open the Control Panel, add or remove programs, a window appears saying "C:Windows\system32\rundll32.exe Application not found.

    Original title: rundll.exe error

    I checked the previous messages and can't seem to find a solution to this problem.  Recently I ran 3 different scans, i.e. sbybot, avast and Malawarebytes virus. After that I ran these anti-virus programs and remove viruses, I was not able to open any more virus scanners. Every time I tried, would open a window saying "Choose the program you want to use to open this file." If I try to download a new virus scanner, it says the same thing.

    When I try to open the Control Panel, add or remove programs, a window appears saying "C:Windows\system32\rundll32.exe Application not found. I checked this file on my c: drive\system 32 and see the rundll.exe file. I also copy and pasted the file rundll.exe my CD of Windows XP in c: Windows\System32

    Everything else seems to work fine on my computer, and I get no message on the rundll.exe file when the computer starts up first.

    Any help would be popular!

    Hello

    You rename regedit.exe regedit.com?

    Remove from my computer-> tools-> file-> option-> view tickmark for "Hide extension for known file types"-> ok-online local disk now C:\WINDOWS\

    Regedit.exe search

    Make a right-click Rename regedit.com

    From start-> Run Type & -> regedit.com-> ok.

    and follow the registry path IE: HKEY_LOCAL_MACHINE\Software\Classes\Exefile\Shell\Open\Command

    I hope this helps.

  • C:Windows/system32/rundll32.exe - Application not found - OK__I get this error message when you try to open a program

    Error messages occur now - seem to appear now, after I did a Defrag.  If I try to open AOL, it brings me to a display list who wants to choose from a list of programs.  For AOL, I click on AOL.  I didn't used to have to select from a list of display.  Then I tried to open an Astrology program and it took me to the same list, which of course is not.  Now, I get the same error as follows: C:Windows/system32/rundll32.exe - Application not found - OK

    Here's a Plan:

    Goto, start system restore restore Menu\All Programs\Accessories\System Tools\System

    Now select the oldest Restore Point and restore your computer, but first make sure that you have an external drive.

    After that C:\Windows\System32\Rundll32.exe copy the external drive and the disc is ejected

    Open the system restore and undo restore

    After the undo operation is copy the Rundll32.exe in the road to C:\Windows\System32

    and the problem solved

    Note: the rundll32.exe should be missed recently and you should have an old Restore Point which contains a file Rundll32.exe Intact

  • How to fix error: "application not found" for C:\Windows\system32\rundll32.exe _

    I had the virus ' Vista Internet Security 2010 "deleted using McAfee, but now I can't start my programs and browsers because I see the error:"application not found"for C:\Windows\system32\rundll32.exe" ".
    How can I fix this problem? I use Vista SP2

    Your computer is still infected. Only McAfee will take care about that. First run .exe from Doug Knox fix:

    http://www.dougknox.com/XP/file_assoc.htm

    Then follow the instructions here:

    http://www.bleepingcomputer.com/virus-removal/remove-antivirus-Vista-2010 MS - MVP - Elephant Boy computers - don't panic!

  • "Application not found" error when you click on links within Windows Mail

    Original title: "Windows Mail"

    Mail works find - no problem. However, when there is a link on my email to a web page, I get a message "Application not found". Fine, now not.

    Help!

    Mail works find - no problem. However, when there is a link on my email to a web page, I get a message "Application not found". Fine, now not.

    Help!

    Check your Internet Explorer (or your main browser). He has probably not ALL his faults.

    Start button > default programs > set your default programs > coulm left, click on Internet Explorer (or your main browser) > it doesn't say "this program has all its defaults"?
    If it does not, click on choose by default for this program > put checkmarks on all entries in the list > clikc register.

    Now try to open the link in the email.

    t-4-2

  • Windows Mail... Application not found

    When I click on a link in my email that is an advertisement for a marker, I get an error window with and Http://email address etc and the Application not found error message. It happens with all my email and some of my quick link on my desktop icons. I am running windows vista and have made no change. This just started recently.

    Is there a setting somewhere that was accidentally changed?

    Hi Ranrol,

    This can happen if the default browser is not defined. To resolve this problem, use the default programs to reset preferences to default Web browser.

    Reset the web browser by default

    Step 1

    1. click on start, default programs

    2. Click set your default programs

    3 select your browser from the list

    4. click on set this program as default

    5. click on OK.

    Then proceed as follows:

    Step 2

    1. click on settings by default access and computer program Set

    2. click on continue if you see the user account control prompt.

    3. click on Customize

    4 Select your browser from the list

    5. click on OK.

    I hope this helps.

    Bindu S -Microsoft Support

    [If this post can help solve your problem, please click the 'Mark as answer' or 'Useful' at the top of this message.] [Marking a post as answer, or relatively useful, you help others find the answer more quickly.]

  • Im running windows vista and office 2007. Many of my files are not open and I get the message "application not found" How can I reapir this?

    I recently had my computer repaired and Office 2007 has been reloaded. Now I get the message "not found when I try to open some files and application for a single file, «windows cannot find the file...»» ».

    If I change the name of the folder, some files were opened.

    In one case, the file opened under the new name [I added a letter], then later not open again - got the same message "application not found" and the Red Cross of death.

    Hi Martin,

    How you try to open the file? You are double clicking on the icon of the file to open or by using the menu file-> the option open in the application to open the file?

    The question is limited to Microsoft Office applications?

    You can visit these links and try the steps in the articles.

    A Microsoft Excel, Word or PowerPoint file does not open because of incorrect file associations

    http://support.Microsoft.com/kb/2464297

    A file does not open in the program that you expect when you try to open the file in Office

    http://support.Microsoft.com/kb/918957

  • Download the c;/windows/system32/systempropertiesadvanced.exe message. application not found?

    Original title: How to fix a registry problem?

    Hello world

    tried to restore the laptop to previous day, but get the message c;/windows/system32/systempropertiesadvanced.exe. application not found?

    Hello
    Thanks for the recommendation, I managed to solve the problem by establishing a new account, they allowing me access to the program of restoration, so I restored to last week which got rid of the offending virouse.

  • My computer says "windows defender is not found", and I can't change the startup of programs in the Control Panel, it says cannot find 'C:\program '.

    Original title: can you help me?

    My computer says "windows defender is not found", and I can't change the startup of programs in the Control Panel, it says cannot find 'C:\program '. I'm vwindows vista

    My computer says "windows defender is not found", and I can't change the startup of programs in the Control Panel, it says cannot find 'C:\program '. I'm vwindows vista

    You in fact 2 questions.
    I will answer the one who is the most important, for you it is.

    RE: Change startup programs

    You can access this way startup programs...

    Start button > in the search box, type msconfig > Enter > click on Startup tab. Here's your startup programs.
    To disable, uncheck the box in front

    To activate... check the box opposite.

    RE: Windows Defender cannot be found.

    If you have the following AV, antivirus, programs installed, close your Windows Defender. Purpose of these AVs have their own advocates. 2 defenders on the same machine will create conflicts.
    Bottom line: it's ok. It's normal.
    List of AVs which will stop Windows Defender:
    Norton
    McAfee
    AVG
    Microsoft Security Essentials

    If you don't have AV programs above, here's how to restart Windows Defender:

    Start button > in the search box, typeServices > press the Enter key > scroll to find Windows Defender, click on it >...
    topic status , it must be said... Has begun
    under Startup Type, it must be said... Automatic
    If it does not say that, right click on Windows Defender > click Properties >
    in Startup Type, click on the pointer to the right and select automatic
    to the service status, click Start
    Click OK when finished.
  • cannot open links on emails from windows, the message says application not found.

    I may accidently uninstalled a program, but the message saying application not found "when I try to open an e-mail message in windows mail.

    Take a look at this thread.
    http://answers.Microsoft.com/en-us/Windows/Forum/windows_vista-networking/application-not-found-error-when-clicking-on-links/ed18ffe5-D666-43df-BC43-e20ef45f793a

  • "Application not found" in Windows Mail

    I have Winows Vista and all of a sudden when I click on an attachment in an email, I get an error message saying "Application not found".  How can I solve this problem?

    Thank you!

    Attachments:

    They may have been written in a program that you don't have on your computer to play with.

    need .doc or .docx Word or a Word Viewer for playback file extensions, etc, etc.
    .xls Excel need.
    need for .pps PowerPoint

    Here are the download links for free Microsoft Word, Excel and PowerPoint viewers:

    http://www.Microsoft.com/downloads/details.aspx?FamilyId=3657ce88-7cfa-457a-9aec-f4f827f20cac&displaylang=en

    Word Viewer

    View, print and copy Word documents, even if you don't have Word installed. This download is a replacement for Word Viewer 2003 and all previous Word Viewer versions.

    http://www.Microsoft.com/downloads/details.aspx?FamilyId=1CD6ACF9-CE06-4E1C-8DCF-F33F669DBC3A&displaylang=en

    Excel Viewer

    Open, view, and print Excel workbooks, even if you don't have Excel installed. This download is a replacement for Excel Viewer 97 and all previous Excel Viewer versions.

    http://www.Microsoft.com/downloads/details.aspx?FamilyId=048dc840-14e1-467D-8dca-19d2a8fd7485&displaylang=en

    PowerPoint 2007 Viewer

    Microsoft Office PowerPoint 2007 Viewer allows you to view the presentations of all the features created in PowerPoint 97 and later versions.

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    And here is a link to a free package of Office Automation:

    http://www.OpenOffice.org/

    How to set file Associations:

    http://articles.TechRepublic.com.com/5100-10878_11-6172036.html

    How do I... Change file extension associations in Windows Vista?

    See you soon.

    Mick Murphy - Microsoft partner

  • Cannot activate windows 7 - accepted not Legit "Application not found" license key

    I have an old Alienware m17x R1 with a copy of Windows 7 Home Premium Service Pack 1 installed. I bought it for the birthday of my son out of craigslist in July 2012. He had so many things about it I not rub and the operating system was already authorized, enabled and recognized as legitimate.

    Yet once the operating system has already been verified as legitimate and fully active and I used Windows Update and Windows Security Essentials broadly I have prepared the machine for her birthday and there is no problem.
    In any case, in mid-2012 October my son suddenly begin to see updates cautioned that "this copy of Windows is not genuine" and he needs to activate it. So, not having contact with the person that I bought the computer from, I advanced and bought a copy of Windows 7 Home Premium for $220.00 rather than download and online Microsoft store online and wipe the machine and re - install (us Mac people never have to deal with such nonsense) just to "fix" things I logically and wisely clicked on Start/Control Panel/system and then clicked on "Change Product key" and entered him valid, legitimate, product key that I had just bought.
    But by entering and submitting the valid, legitimate product key, official, based on my download page on the Microsoft Store returns the following error:
    Code: 0xC004F050
    "The Software Licensing Service reported that the product key is not valid"
    So, thinking I can buy the wrong operating system I checked and checked that I have in fact Windows 7 Home Premium SP1 installed, and I indeed bought Windows 7 Home Premium. So, I seem to be tight. True, Microsoft normal 'solution' in such a situation is to destroy all of your years of data and spray your machine and then rebuild from scratch, but as a Mac guy, that I hope that I'm not yet at that time here and we'll find a clever solution to the problems of this operating system.
    Also, when I run slui.exe and click "go online and fix now" link, I get the following arcane error:
    "http://go.microsoft.com/fwlink/?LinkId=89429&OSV=6.1.7601.2.00010300.1.0.003.09.1033&LS...". »
    "Application not found".
    I tried to rebuild the license store by the great reviews on this page: http://www.sevenforums.com/windows-updates-activation/227921-windows-7-all-sudden-saying-its-not-genuine.html, but it has not solved the problem.
    Then, I spent a lot of money on a new operating system on a platform of big game that is quickly became a brick. Advice on how I can fix it is to have this Windows 7 machine and may he accept the valid license key that I bought at the store Windows online and get active and legitimate, again, would be most appreciated!
    Thank you
    Wulf

    Thanks for the reply but I am a little confused. Having enjoyed that a Windows operating system to the given address of the bios never stopped an operating system to be activated in my nearly 20 years of using Windows


    An OEM SLP key requires a compatible bios marker in order to activate. OEM system builder and retail keys are not. When you bought your computer probably an OEM SLP key has been used with a hack of activation.
    unless there is something wrong with the operating system.
    There is something wrong with the operating system. It's been hacked and therefore is not authentic.

    Normally, Windows Activation Technologies runs every 90 days so it can sometimes can take awhile, especially if the WAT update is disabled.
    additional information:

    Computers, which are built by large manufacturers provided with pre-installed Windows are supplied with 2 two product keys:

    (A) OEM SLP: this key comes pre-installed in Windows, when it comes to the factory. This key is designed to work with the special instructions isn't on the hardware of this manufacturer. Then, when Windows was installed using the OEM SLP (in factory) Windows 7 key leans on the motherboard and he sees special instructions and activates. (that's why you had no need to turn on your computer after you brought it home)

    (B) SLP COA: it's the product key that you see on the sticker on the side (or at the bottom, [or in the battery compartment]) of your computer. It is a valid product key, but must be used only in certain situations (for example, if the OEM SLP key stops automatic activation for a reason any). The key must be activated by phone. (Note: all manufacturers that use the SLP OEM system are bound by contract to include a certificate of Authenticity sticker (COA), which has a COA SLP key, on the computer)



Maybe you are looking for

  • Unnecessary support

    All that I wanted to know, expires one year my MACBOOK in 8 days, can I buy apple care? Everything I did, waited for 1 hour on the phone with Apple Support and talked to 3 different people, listen to their music useless and no help was provided, fina

  • Type of descriptor & cast a refnum

    Hello This question is a re-opening of this old thread, which ends with a non-response... (given that the proposed solution is supposed to disappear one day) http://forums.NI.com/T5/LabVIEW/LabVIEW-8-2-control-RefNum-type-descriptor-missing/m-p/59206

  • Drag / move

    Hello I have a main.vi where I created Boolean controls for chart and indicators. If I press the graph button it will start to pop - up graph.vit (model) and it shows in main.vi. as even if I press the indicator button it will start to pop up and run

  • XP not start after June 23, update__

    I run XP Pro SP3. I have installed the latest updates yesterday. This morning the computer started fine, and projected blue. When I tried to restart, start the computer, and yet nothing came on the screen. After turning the machine market once again,

  • Try to download explorer 8

    Try to download explore 8 error message: make sure the cryptographic service is running on your computer.  Have done this - but I still cannot download.  Any help would be greatly appreciated. Thank you!