Clean reinstalled Vista. Windows Defender will not be open and turn on. Can I uninstall and reinstall WD?

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  Copy davidhk129 answer to the question of Windows Defender won't start do not:

  Here's a direct copy...

  If you have
  one of the following AV, antivirus, programs installed, it will stop 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, type Services > 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
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  Defender > click Properties >
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• Windows Defender does not allow me to turn on or off. 0x800705b4 error code. Need help

  Windows Defender does not allow me to turn on or off. 0x800705b4 error code. Need help

  Hello

  If you use Norton, AVG, Avira, Microsoft Security Essentials, McAfee, etc. the default action is for Windows Defender must be disabled, that these AntiVirus programs have their own Antispyware Applications.

  There is nothing to worry.

  Using both programs at the same time can cause system conflicts, etc.

  If you are using one of the above AntiVirus programs, this Information from David O - Support Engineer shows you how to manually enable Windows Defender (disregard information from uninstalling; not possible in Vista):

  http://answers.Microsoft.com/en-us/Windows/Forum/windows_vista-security/how-do-i-manually-start-Windows-Defender-in-Vista/dab845b2-9ba5-47F3-9518-c4c6781e7d5b

  "Go to start, Control Panel, Administrative Tools, Services. Look for Windows Defender.

  Right click and select Properties , ensure that Startup Type is automatic.

  Once modified, click apply and OK.

  Quit and restart your computer. Check the back take the same path to confirm that Windows Defender has started"

  .

  If you want to have additional protection against malware using the version FREE of Malwarebytes AntiMalware:

  http://www.Malwarebytes.org/products/malwarebytes_free

  And for now, change startup Vista programs without using Defender, use one of these methods:

  "How to use MSCONFIG in Windows Vista"

  http://netsquirrel.com/Msconfig/msconfig_vista.html

  Or the program Autoruns for FREE:

  "V11.21 Autoruns for Windows"

  http://TechNet.Microsoft.com/en-us/sysinternals/bb963902

  See you soon.

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• Windows Defender will not be updated

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  Someone knows something like that? I would like to reinstall windows Defender so that it can update itself and let my only internet. And I don't mean simply turning on or off; I can't do this if the service does not start. Oh and I tried to restore to an earlier date, it is not far enough.

  Hi GooMoo,

  Try the steps of troubleshooting provided by Ajay, in thisthread.

  Dena
  Microsoft Answers Support Engineer
  Visit our Microsoft answers feedback Forum and let us know what you think.

• Windows Defender will not stay.

  Recently, I realized that I didn't have Windows Defender on my new computer, and it was on my old.  So I downloaded.  Now, every day I put on (if I remember) which I didn't do before.  I have Windows XP and AVG (free) for protection.  I don't have Vista.  When I was reading the other posts, most of them had to do with Vista and McAfee.  I need help for my computer.  How can I keep enabled?  I went to tools, properties, etc... and he said: it's on, but then the next day, I have to restart.

  I recommend that you leave Windows Defender installed, this way if you have any questions, it's a more resources at your disposal. I use AVG and Yes AVG disables Windows Defender, however, I recently received a very bad virus and after working hours to clean and remove the files manually, Windows Defender has found the final key file.  I used AVG and Norton both ran own scans. Finally, I ran Windows Defender and it finds a file viral severe level 1. After that Windows Defender fixed and the content of the file, everything is 100% new.

  She is already here, just keep it as a safety net :-)

• Windows Defender will not work

  I installed the microsoft Security Center and now Defender will not work.

  If that's okay. How can I now change my Start menu?

  Use the msconfig method...

  Start > in the search box, type msconfig > press the Enter key > uac prompt > Startup tab > here's startup programs >
  To activate... check the box opposite.
  To disable, uncheck the box in front. For the benefits of others looking for answers, please mark as answer suggestion if it solves your problem.

• Windows Defender will not activate in Windows Vista

  I use windows vista and after I bought Norton 360 and put it on my HP laptop... whenever I wish my PC it seems there is a problem with windows security. When I open my windows Defender would emerge but let me enable it by running the update for it.  Now it lights up at all... I get a message that windows security is unable to activate windows defender on please try again later... more later she just said and did the same thing and will not let me install another version of windows defender... OH one thing... after having installed Norton on this laptop as well as my other more old or my CD/DVD burner drivers works not at all... will not read a disc at all... what happens?

  You should never have 2 versions on any antivirus installed on your computer, or 2 different AVs installed.

  It will cause problems.

  I suggest that solve you your Norton anti-virus to address any problem of CD.

  http://www.Symantec.com/support/index.jsp

  Contact the Norton Support.

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

  If you have Microsoft Security Essentials, AVG, McAfee, Norton, etc. installed, they have a conflict with Windows Defender, or turn it off.

  Microsoft Security Essentials has its own integrated version of the defender and should automatically disable the version of Vista in Windows Defender.

  If it's not:

  http://Windows.Microsoft.com/en-us/Windows-Vista/turn-Windows-Defender-on-or-off

  Turn Windows Defender on or off the information on the link above of Microsoft.

  Hope the above explains the common compatibility issues with Windows Defender and other security programs.

  See you soon.

  Mick Murphy - Microsoft partner

• My OS is Windows Vista 64 Home Premium and I have installed Microsoft Security Essentials now, Windows Defender will not work. Why?

  Windows Defender encountered an error: 0x800106ba

  MSE must close Winfows Defender.

  MSE has its own integrated version of Defender.

  See you soon.

  Mick Murphy - Microsoft partner

• My vista windows Defender does not work after got rid of the virus Windows diagnosis. What can I do?

  It gives me an error code and says that my windows defender is stopped. Is it because I have installed Microsoft Security Essentials to help eliminate the virus. What should I do? I tried unistalling it and reinstall but it won't let me not just uninstall first. In addition, the virus has a sound, it does at the start and he is always on my computer when I start my computer. This means that the files are still on my computer?

  Hello

  That's right

  MSE stops at the vista version of windows defender

  read this information on the Defender:

  ·                         If you use microsoft security essentials avg avira mcafee norton etc they disable the vista version of windows defender by default

  the basics of Microsoft security has its own version of windows defender

  and other anti-virus programs use their own particular type of application to scan for spyware and malware

  It of nothing to worry and is the default action, which is designed for them to do

  and if you need to change startup programs read this information on the other methods of doing it without using defender

  using msconfig read this tutorial;

  How to use MSCONFIG in Windows Vista

  Here's how to use MSCONFIG in Windows Vista to disable some unnecessary programs that load automatically at startup

  http://netsquirrel.com/Msconfig/msconfig_vista.html

  and also try this program;

  This utility, which has a knowledge of auto-starting locations of any startup monitor, shows you what programs configured to run at system startup or login and that the entries in the order of processing windows. These programs include those in your startup folder, Run, RunOnce, and other registry keys. You can configure Autoruns to show other locations, including Explorer shell, toolbar extensions, helper objects to the browser, Winlogon notifications, auto and many start-up services more

  http://TechNet.Microsoft.com/en-us/sysinternals/bb963902

  follow these steps to remove this malware that you think it's still there

  Download update and scan with the free version of malwarebytes anti-malware

  http://www.Malwarebytes.org/MBAM.php

  You can also download and run rkill to stop the process of problem before you download and scan with malwarebytes

  http://www.bleepingcomputer.com/download/anti-virus/rkill

  If it does not remove the problem and or work correctly in normal mode do work above in safe mode with networking

  Windows Vista

  Using the F8 method:

  1. Restart your computer.
  2. When the computer starts, you will see your computer hardware are listed. When you see this information begins to tap theF8 key repeatedly until you are presented with theBoot Options Advanced Windows Vista.
  3. Select the Safe Mode with networking with the arrow keys.
  4. Then press enter on your keyboard to start mode without failure of Vista.
  5. To start Windows, you'll be a typical logon screen. Connect to your computer and Vista goes into safe mode.
  6. Do whatever tasks you need and when you are done, reboot to return to normal mode.

• Windows Defender will not update

  IHAVE windows XP Defender. For the last 6 month'sit will not be updated. Icannot find the shortcut to run the program. When the download of microsoft, windows defender update updates will not install. Help appriciated.

  Windows Defender may have been uninstalled.  Look in Control Panel to see if it is still listed.

  Windows Defender cannot be used with AVG, McAfee, MSE or Norton.  It is part of the Vista and Win 7 operating system and cannot be uninstalled.

  Windows Defender must be uninstalled XP if you use AVG, McAfee, MSE and Norton.  If you use these programs on your XP operating system, please be sure that Windows Defender has been uninstalled (from Control Panel).

  Windows Defender and Microsoft Security Essentials

  If you can not only your problem please post back and elaborate on your computer, programs AV, etc...

  Kind regards...

• Vista - Windows Defender does not refresh

  After this last big security update by week or so age, my Windows Defender said that it is out of date. I tried several times by saying to update again, but it does not help.

  It gives me an error or anything like that. I'll tell her to search for updates, it will sit for a few minutes, and then it will tell me that there are no new security definitions to install. And yet, he continues to insist that it is outdated.

  I tried searching for a solution, but no luck. And as the title says, I'm on a Windows Vista.

  Can you help me please?

  Hello

  Thanks for posting your question on Windows Defender not updated to Windows Vista computer.

  See the link here for the procedure to work on the issue.

  How to troubleshoot Windows Defender definition update

  Keep us informed of the progress of the issue.

• Windows Defender will not pass because of a code 80072EFE

  can someone help with this problem

  tried reinstaling windows essentais and I stillcant open it

  can someone help with this problem

  tried reinstaling windows essentais and I stillcant open it

  There is no "windows essentials. There are
  Windows Live Essentials 2011, or
  Microsoft Security Essentials.
  Can you talk?

  See if the following applies to you:

  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 do not the aboive, here's a way 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 the new window, make the necessary changes, as above > click OK when finished.

  For the benefits of others looking for answers, please mark as answer suggestion if it solves your problem.

• Windows Defender will not update using Microsoft Security Essentials AV deffinitions

  I can't get Windows defender to update its deffinitions.
  With the help of MS Security Essentials AV
  Vista Ultimate 64 bit

  Error found: Code 0 x 80240016

  Even though I installed the Windows updates last night, it seems that there are more updates to install tonight. Any ideas on what's going on? Should I wipe it and install Win 7?

  Hello
  Ms supports:

  1. Close the browser Windows Update or Microsoft Update Windows.
  2. Click Start
     The collapse of this image enlarge this image

     

     type command prompt, in the list of results, right-click invite and then click run as administrator .

     The collapse of this image enlarge this image

     

     If you are prompted for an administrator password or a confirmation, type the password or provide confirmation.

  3. Type the following commands. Press ENTER after each command:
     net stop wuauserv
     net start wuauserv

  However, see here

  http://social.answers.Microsoft.com/forums/it-it/msestart/thread/5309cb8d-02e1-40E8-974f-0dcedb9ab9fd

  "Do I have to manually disable or uninstall Windows Defender, if I use Microsoft Security Essentials?
  A: If Microsoft Security Essentials did not automatically disable Windows Defender in Vista or Windows 7, you must turn off to avoid conflicts. Windows Defender can't be uninstalled Vista or Windows 7.
  If Microsoft Security Essentials does not automatically uninstall Windows Defender on XP, you must manually uninstall Windows Defender through Control Panel of configuration/Add / Remove programs. »

  Elvis