Windows Defender Blocking Asset Processor In Lumberyard

Hello Lumbernauts,

Recently, we’ve been notified that some users are experiencing issues with Windows Defender blocking the asset processor in Lumberyard Engine after thinking it had detected malware. We have contacted Microsoft support and they recommend the following steps if you have encountered this issue:

  1. Open command prompt as administrator and change directory to c:\Program Files\Windows Defender
  2. Run “MpCmdRun.exe -removedefinitions -dynamicsignatures”
  3. Run “MpCmdRun.exe -SignatureUpdate” Alternatively, the latest definition is available for download here: