Should I deactivate Windows Defender, if I use Avira Software?

If one of the Avira modules remains inactive after installation on Windows XP, Windows Vista, Windows 7 or Windows 8 we recommend that you deactivate Windows Defender. You can check the Windows System Eventlog, to see if Windows Defender is blocking Avira modules. The Eventlog issues the following message, or a similar one:

Windows Defender Real-Time Protection agent has detected changes. Microsoft recommends you analyze the software that made these changes for potential risks. You can use information about how these programs operate to choose whether to allow them to run or remove them from your computer. Allow changes only if you trust the program or the software publisher. Windows Defender can't undo changes that you allow. Path found:
lsp:avsda.dll;file:C:\Windows\system32\avsda.dll

In Windows XP:
To see the Eventlog, go to Start → Run, type the command Eventvwr, select System in the Event Viewer and look for the lines with WindDefend in the Source column.

In Windows Vista:
To see the Eventlog, go to Start → Run, type the command Eventvwr, select Windows logs → System in the Event Viewer and look for the lines with Windows Defend in the Source column.

In Windows 7:
Proceed the same way as in Windows Vista to see the Eventlog.

To deactivate Windows Defender:

  1. Click on Start → Control Panel. Now switch the view on the top right to "Small icons" and select "Windows Defender"
  2. Go to Extras → Options
  3. Remove the check-marks for the options Activate on-access protection and Use Windows Defender.
  4. Press Save to apply the changes.
  5. Restart the computer

In Windows 8:

  1. To see the Eventlog, right-click on an empty area among the tiles on the Metro desktop
  2. On the bottom right, click on "All apps"
  3. Now click on "Control Panel" and on the top right select the view "Category", if not already done so
  4. Go to the category "System and Security". At "Administrative Tools", you will find "View event logs"
  5. Select Windows logs → System in the Event Viewer and look for the lines with Windows Defender in the Source column

To deactivate Windows Defender in Windows 8:

  1. Click on an empty area among the tiles on the Metro desktop
  2. On the bottom right, click on "All apps"


     
  3. Now click on "Windows Defender"
  4. Within Windows Defender, select the tab "Settings" and deactivate the check mark at "Turn on real-time protection"

    Win 8 deactivation Windows Defender
     
  5. Click on Save changes to apply the changes.
  6. Restart the computer

Alternatively, you can download the following script, to automatically deactivate Windows Defender: DisableWDefender_en.zip (Password: avira)

Unpack the archive and then click the file DisableWDefender_en.vbs. If you use Windows 7, you have to confirm that you want to run the file. Then restart the computer.

In case you want to re-activate Windows Defender later, use the following script: EnableWDefender_en.zip (Password: avira)

Then check Avira product status. If there still are inactive modules in the Overview, you have to repair your Avira program: Go to Start → Settings → Control Panel → Add or Remove Programs, click the Avira icon, press Change and when the wizard starts, select Modify. Restart the computer after repairing Avira software.

If there are any remaining inactive Avira Modules, please contact Avira Support.

Affected products

  • Avira Professional Security [Windows]
  • Avira AntiVir Premium, Version 10 [Windows]
  • Avira Free Antivirus [Windows]
  • Avira Antivirus Premium 2013 [Windows]
  • Avira Antivirus Suite [Windows]
  • Avira Internet Security [Windows]
  • Avira Professional Security, Version 2012 [Windows]
  • Avira Internet Security Suite [Windows]
  • Avira Family Protection Suite [Windows]
  • Avira Ultimate Protection Suite [Windows]
  • Avira AntiVir Professional, Version 10 [Windows]
  • Avira Antivirus Premium, Version 2012 [Windows]
  • Avira Internet Security, Version 2012 [Windows]
  • Avira AntiVir Personal - Free Antivirus, Version 10 [Windows]
  • Avira Premium Security Suite, Version 10 [Windows]
  • Created : Tuesday, July 21, 2009
  • Last updated: Monday, October 7, 2013
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