Sub Delete_KG()
Application.ScreenUpdating = False
For Each WS In Sheets
WS.Activate
Dim LR As Long, i As Long
LR = Range("J" & Rows.Count).End(xlUp).Row
For i = LR To 1 Step -1
If Range("J" & i).Value = "" Then Rows(i).Delete
Next i
Next WS
Application.ScreenUpdating = True
End Sub