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Windows Defender on Microsoft Vista is not working. How can I reinstall it?

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You can try the solutions found on the following website.

http://answers.microsoft.com/en-us/windows/forum/windows_vista-windows_programs/reinstalling-windows-defender-wvista/32fddb1c-1d24-408c-aa8f-0ac82baa237a

Posted on Oct 20, 2013

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Posted on Jan 02, 2017

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SOURCE: Microsoft Windows Security Essentials on

hi..you can only choose one antivirus program..usually when MSE is activated you cannot turn on windows defender..in any case that you had your system 2 activated antivirus it will affect the performance..

Posted on Jul 19, 2011

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Sir pl tl me that whch antivirus is suitable for window 8


Windows 8 includes an automatically loaded updated version of Windows Defender
which is a full antivirus based on Microsoft Security Essentials.
(Windows Defender
for XP, Vista, and Windows 7 was only antispyware.)
So if you upgrade the protection
is automatic and is on by default at installation.

Windows Defender and Windows SmartScreen fight viruses and other malware
http://windows.microsoft.com/en-US/windows-8/windows-defender#1TC=t1

How to Create a "Windows Defender" Shortcut in Windows 8
http://www.eightforums.com/tutorials/6862-windows-defender-create-shortcut-windows-8-a.html

How to Add a "Windows Defender" Cascading Desktop Context Menu in Windows 8
http://www.eightforums.com/tutorials/8450-windows-defender-cascading-desktop-context-menu-create-windows-8-a.html

Jun 24, 2013 | Acer Aspire Computers & Internet

1 Answer

How to fix windows defender for free


The Windows Defender software constantly scans your computer for threats such as spyware that may slow down your computer or try to steal personal information. If the software wasn't installed properly or is conflicting with other programs running on your machine, Windows Defender may not work correctly. To repair the software you either need to download the latest update available for the program, or you need to completely uninstall and reinstall Windows Defender.

Restart your computer's operating system. Double-click the "Windows Defender" icon in the system tray at the lower-right end of the screen. Click the question mark icon at the top of the Windows Defender screen and choose "Check for Updates." Select "Continue" if you are running Windows Vista. Wait for the updates to finish installing and click "Scan." Click "Stop Scan" if the problem persists. Click the question mark icon again and select "Exit Windows Defender." Click "Yes" to confirm you want to close the software. Open the "Start" menu screen and select "Control Panel." Select "Uninstall a Program" in Windows 7 or Windows Vista, or instead choose "Add or Remove Programs" in Windows XP. Click the "Windows Defender" entry and select "Uninstall." Choose "Yes" and restart the computer after the program is removed. Navigate to the Windows Defender installation webpage (see Below). http://www.microsoft.com/downloads/details.aspx?FamilyId=435BFCE7-DA2B-4A6A-AFA4-F7F14E605A0D&displaylang=en&mg_id=10134 Click "Download" and double-click the Windows Defender installation file when it downloads to your hard drive. Go through the onscreen installation instructions. Open the "Start" menu and choose "All Programs." Select "Windows Defender." Click "Scan" to start a new scan for malicious software. Hope this helps

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Dec 27, 2012 | E-Machines eMachines Desktop PC

1 Answer

I have a problem trying to turn on windows defender on my pc.. i try a few diferent ways but no luck.. can someone help with a solution that works for sure yhank s


At the startup of Windows XP, you may see an error that says "Unable to Start Windows Defender service". This issue occurs, if some of the registry entries are corrupted. Restarting the service from the service console may also prompt the same error.

To resolve this issue, you may need to uninstall and reinstall the Windows Defender. Follow the below mentioned steps:

1. Click Start, Control Panel.
2. Click Add or Remove Programs.
3. Click Windows Defender, and click Remove.

This will uninstall Windows Defender. You can download and reinstall the updated version from the following link:

http://www.microsoft.com/athome/security/spyware/software






Hope this helps!!! Let me know if you need more help


-Nadeem

Dec 24, 2012 | E-Machines eMachines Desktop PC

1 Answer

Windows defender quit working on my laptop. DVD player does not work, so I can't reinstall from the back up disk. Anyway to fix this or do I need to get a new dvd drive to reinstall windows vista


Was the DVD damaged in so way? Does it show in Computer? Does it need driver? Which Gateway do you have? Windows Defender can be downloaded or fixed online.Do you have a Anti Virus that has turned off Windows Defender? Try MS Fix It: http://support.microsoft.com/kb/931849 OR http://support.microsoft.com/kb/931099

Nov 28, 2012 | Gateway Computers & Internet

1 Answer

Windows defender not working


The Windows Defender software constantly scans your computer for threats such as spyware that may slow down your computer or try to steal personal information.


If the software wasn't installed properly or is conflicting with other programs running on your machine, Windows Defender may not work correctly.


To repair the software you either need to download the latest update available for the program, or you need to completely uninstall and reinstall Windows Defender.


Restart your computer's operating system.

Double-click the "Windows Defender" icon in the system tray at the lower-right end of the screen.


Click the question mark icon at the top of the Windows Defender screen and choose "Check for Updates."


Select "Continue" if you are running Windows Vista.


Wait for the updates to finish installing and click "Scan."

Click "Stop Scan" if the problem persists.


Click the question mark icon again and select "Exit Windows Defender."

Click "Yes" to confirm you want to close the software.


Open the "Start" menu screen and select "Control Panel." Select "Uninstall a Program" in Windows 7 or Windows Vista, or instead choose "Add or Remove Programs" in Windows XP.


Click the "Windows Defender" entry and select "Uninstall."

Choose "Yes" and restart the computer after the program is removed.


Navigate to the Windows Defender installation webpage (see Below).

http://www.microsoft.com/downloads/details.aspx?FamilyId=435BFCE7-DA2B-4A6A-AFA4-F7F14E605A0D&displaylang=en&mg_id=10134


Click "Download" and double-click the Windows Defender installation file when it downloads to your hard drive.


Go through the onscreen installation instructions.

Open the "Start" menu and choose "All Programs."


Select "Windows Defender."

Click "Scan" to start a new scan for malicious software.


You might find some interesting security tips here.


http://support.microsoft.com/ph/11952


Hope this helps

Nov 28, 2012 | Computers & Internet

3 Answers

Set up wizard for windows xp my windows defender did not install properly


please uninstall the defender software and then reboot the computer and again reinstall the defender. it will work properly.

Feb 18, 2010 | Microsoft Windows Vista Home Basic Edition...

2 Answers

How do i uninstal Windows Defender,and then reinstal


Go to Control Panel ---> Add or Remove Programs. in that check for the "Add/Remove Windows Components" . In that select the components u want to install or uninstall. But do remember if u want to reinstall the software u require the OS Cd or else the I386 folder which can be found in the Operating System CD.

Oct 26, 2009 | Microsoft Windows Vista Home Basic Edition

1 Answer

No Internet Explorer with Vista


You should reinstall Windows vista. But my advice is to update to Windows 7.

Oct 05, 2009 | Microsoft Windows Vista Home Premium...

1 Answer

Error messages


Uninstall the Windows defender and install am updated version. If it doesn't work, try this:
To resolve this problem, follow these steps:

1. Uninstall Windows Defender, and then reinstall Windows Defender. To do this, follow these steps:
1. Click Start, click Run, type appwiz.cpl, and then click OK.
2. Click Windows Defender, and then click Remove.
3. Follow the prompts to uninstall Windows Defender.
4. To reinstall Windows Defender, visit the following Microsoft Web site:
http://www.microsoft.com/athome/secu...yware/software (http://www.microsoft.com/athome/secu...yware/software)
2. If this issue is not resolved after you complete step 1, uninstall Windows Defender, use the Windows Installer CleanUp utility, and then reinstall Windows Defender. To do this, follow these steps:
1. Click Start, click Run, type appwiz.cpl, and then click OK.
2. Click Windows Defender, and then click Remove.
3. Follow the prompts to uninstall Windows Defender.
4. To use the Windows Installer CleanUp utility, click the following article number to view the article in the Microsoft Knowledge Base:
290301 (http://support.microsoft.com/kb/290301/ ) Description of the Windows Installer CleanUp utility
5. To reinstall Windows Defender, visit the following Microsoft Web site:
http://www.microsoft.com/athome/secu...yware/software (http://www.microsoft.com/athome/secu...yware/software)
3. If this issue is not resolved after you complete step 2, follow this step:
1. Click Start, click Run, type regsvr32 file name, and then click OK.

Note In this step, file name is a placeholder for the following files.

Repeat this procedure for the following files:
* wuapi.dll
* wuaueng.dll
* wucltui.dll
* wups.dll
* wuweb.dll
* atl.dll
* softpub.dll
* wintrust.dll
* initpki.dll
* mssip32.dll"

cheers ...

Apr 10, 2009 | HP Pavilion 520c PC Desktop

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