Avira Antivirus Unknown Error 857735165 Luke File Walker Posted on by Webmaster IT Support Forum › Forums › Antivirus › Avira › Antivirus Pro › Troubleshooting › Avira Antivirus Unknown Error 857735165 Luke File Walker Tagged: Error 857735165, Luke Filewalker This topic contains 3 replies, has 2 voices, and was last updated by LisamJackson 2 years, 5 months ago. Author Posts September 4, 2015 at 5:16 pm #1375 WebmasterKeymaster When Avira Antivirus launches the scheduyled scan (Luke Filewalker), you get this error: Avira Antivirus Unknown error 857735165 Unknown error 857735165 is caused by Avira Antivirus updating the Luke Filewalker service and not being able to complete the update because it needs a restart. To fix error 857735165, restart the computer then start the Avira Antivirus scan again. October 11, 2015 at 7:51 am #1408 LisamJacksonParticipant I’ve tried that several times, hasn’t worked at all October 11, 2015 at 8:08 am #1409 WebmasterKeymaster Hi and welcome to the forum. In your case, Unknown error 857735165 might mean that the antivirus signature update process is corrupt. I’d reinstall Avira, if I were you and see if that fixes it. October 11, 2015 at 7:38 pm #1410 LisamJacksonParticipant All sorted thanks and reinstalled antivirus now running a full scan as got a virus voice yesterday when I tried to remove myself from a jobs website. Author Posts You must be logged in to reply to this topic.