Try this:
Select Distinct Top 1000000 tblAssets.AssetName,
tblAssets.IPAddress,
tblAssets.Domain As ComputerDomain,
tblUsers.Name As Username,
tblUsers.Fullname,
Case
When tblUsers.Disabled = 1 Then 'Yes'
Else 'No'
End As IsDisabled,
tblUsers.SID,
tblAssets.AssetID
From tblAssets
Inner Join tblUsers On tblAssets.AssetID = tblUsers.AssetID
Where tblUsers.Name Like '%Sample%'
Order By ComputerDomain,
tblAssets.AssetName