Defender shows up because it is scanned through WMI. So even when you remove Defender from Software/Anti-Virus Settings, Lansweeper will still discover it as disabled and outdated.
Best you can do I think is exclude Defender from the report:
Select Top 1000000 tsysAssetTypes.AssetTypeIcon10 As icon,
tblAssets.AssetID,
tblAssets.AssetName,
tblAntivirus.DisplayName As Antivirus,
tblAssets.Domain,
tsysAssetTypes.AssetTypename As Type,
tblAssets.IPAddress As [IP Address],
tblAssets.Description,
tblAssetCustom.Manufacturer,
tblAssetCustom.Model,
tblAssetCustom.Location,
tsysIPLocations.IPLocation,
tblAssets.Lasttried,
tblAssets.Firstseen,
tblAssets.Lastseen
From tblAssets
Inner Join tblAssetCustom On tblAssets.AssetID = tblAssetCustom.AssetID
Inner Join tsysAssetTypes On tsysAssetTypes.AssetType = tblAssets.Assettype
Inner Join tblAntivirus On tblAssets.AssetID = tblAntivirus.AssetID
Left Join tsysIPLocations On tblAssets.LocationID = tsysIPLocations.LocationID
Where tblAntivirus.DisplayName Not Like '%Defender%' And tblAssetCustom.State =
1 And tblAntivirus.productUpToDate = 0
Order By tblAssets.AssetName