diff --git a/Shared/Win32/SECUR32.cs b/Shared/Win32/SECUR32.cs
index bd8e50cdd..38e951949 100644
--- a/Shared/Win32/SECUR32.cs
+++ b/Shared/Win32/SECUR32.cs
@@ -316,7 +316,6 @@ protected override bool ReleaseHandle()
     }
 
     [DllImport("secur32.dll", SetLastError = true)]
-    [ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)]
     [ResourceExposure(ResourceScope.None)]
     internal static extern int LsaDeregisterLogonProcess(IntPtr handle);
 
diff --git a/Shared/Win32/User32.cs b/Shared/Win32/User32.cs
index 2011d0a15..4ce0befbf 100644
--- a/Shared/Win32/User32.cs
+++ b/Shared/Win32/User32.cs
@@ -1211,11 +1211,9 @@ protected override bool ReleaseHandle()
         }
 
         [return: MarshalAs(UnmanagedType.Bool)]
-        [ReliabilityContract(Consistency.WillNotCorruptState, Cer.MayFail)]
         [DllImport("user32", CharSet = CharSet.Unicode, SetLastError = true)]
         public static extern bool CloseWindowStation(IntPtr hWinsta);
 
-        [ReliabilityContract(Consistency.WillNotCorruptState, Cer.MayFail)]
         [DllImport("user32", CharSet = CharSet.Unicode, SetLastError = true)]
         public static extern SafeWindowStationHandle OpenWindowStation([MarshalAs(UnmanagedType.LPTStr)] string lpszWinSta, [MarshalAs(UnmanagedType.Bool)] bool fInherit, ACCESS_MASK dwDesiredAccess);