How can I manually enable windows Defender? I can't open it to activate

Enable or disable the Windows Defender real-time protection

To help prevent software spyware and other unwanted software from infecting your computer, turn on Windows Defender real-time protection, and select all real-time protection options. Real-time protection alerts you when software spyware and other potentially unwanted software attempts to install or run on your computer. You are also alerted if programs attempt to change important Windows settings.

  1. Click to open Windows Defender.

  2. Click on tools and then click Options.

  3. Under real-time protection options, select the check box to use real-time protection (recommended).

  4. Select the options you want. To help protect your privacy and your computer, we recommend that you select all real-time protection options.

  5. Under Choose if Windows Defender should notify you, select the options you want, and then click Save. If you are prompted for an administrator password or a confirmation, type the password or provide confirmation

I followed these instructions, but the link to open windows defender just tells me that I have to open & activate manually

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.

Tags: Windows

Similar Questions

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    My windows defender program is disabled. When I try to turn it on, I get an error message and told me to turn it on manually, but I do not know hAnyone who can help me with this, will be greatly appreciated.ow to do.

    First of all, what program AV.AM (s) do you use?  Some (actually several) disable Defender during installation and Defender should be left in the case, or it may cause conflicts, crashes, freezes and other problems.

    If this is not the case, here is an article on how to enable Windows Defender when it will not start normally:http://support.microsoft.com/kb/555962.

    Here's the normal procedure to activate Windows Defender: http://www.ehow.com/how_5089319_enable-windows-defender.html.

    I hope this helps.

    Good luck!

    Lorien - MCSA/MCSE/network + / has + - if this post solves your problem, please click the 'Mark as answer' or 'Useful' button at the top of this message. Marking a post as answer, or relatively useful, you help others find the answer more quickly.

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    Hello

    I have a Vista laptop and today found out that Windows Defender is disabled.  When I tried to put it on a window appears telling me an error: OX800106ba caused windows defender to stop work and that I should turn the computer off, then on.  I did several times without success.  Can you help me please?

    Judith

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    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):

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    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

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    "How to use MSCONFIG in Windows Vista"

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

    Or the program Autoruns for FREE:

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

    See you soon.

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    How to resolve this error message

    When I start my laptop I get an error message when the windows open which says
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    Hello

    Your first mistake may be malicious associates.

    Download, install, update and scan your system with the free version of Malwarebytes AntiMalware:

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

    @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

    If the problem persists after scanning, take these startup entries:

    "How to use MSCONFIG in Windows Vista"

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

    You can also use this free program to do, too:

    "Autoruns for Windows V11.32"

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

    @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

    Subject of Defender:

    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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    http://Windows.Microsoft.com/en-us/Windows/turn-Windows-Defender-on-off#turn-Windows-Defender-on-off=Windows-7

    http://www.SevenForums.com/tutorials/6397-Windows-Defender-turn-off.html

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