Scan for hidden objects gets caught in a loop with file system.workflow.runtime.dll

In rare cases, it might happen that your scanner apparently gets caught in an endless loop while searching for hidden objects. This happens with system files, particularly often as the file system.workflow.runtime.dll is being examined.

It occurs only during a scan by pressing the button "Scan system" or when the option "Search for Rootkits before scan" is activated. This is an issue we are currently analyzing and will be resolved in the near future.

In case this error occurs on your system, we recommend you to perform a scan without the search for rootkits for now. The Avira Real-Time Protection is not affected at all and protects you from malware without any restrictions. The System Scanner works without this option to its full potential as well - the only exception being the search for the malware species "rootkit". Therefore, the security restriction would only be minimal.

To do this, please proceed as follows:

  1. Open the Avira main console by clicking on the umbrella icon on the taskbar or desktop.

  2. On the Avira main console, click on "Extras" and select "Configuration" from the drop-down menu

    AV13 extras config
  3. Within the configuration windows make sure to activate the "Expert mode"

    AV13 config expert mode
  4. Below the category "PC Protection", highlight the menu item "System Scanner"

  5. On the right pane, deactivate the option "Search for Rootkits before scan" below "Additional settings" and click on Apply or OK to confirm

    AV13 scanner rootkit disabled

How to do a scan of local drives:

  1. On the Avira main console, click on "System Scanner" below the category "PC PROTECTION"

  2. Select "Local Drives" on the right pane if you want to include removable devices and "Local Hard Disks" for your installed hard drives only

    AV13 local scan

Affected products

  • Avira Professional Security [Windows]
  • Avira Free Antivirus [Windows]
  • Avira Antivirus Premium 2013 [Windows]
  • Avira Internet Security [Windows]
  • Created : Wednesday, January 16, 2013
  • Last updated: Thursday, January 24, 2013
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