diff --git a/reactos/ntoskrnl/fstub/disksup.c b/reactos/ntoskrnl/fstub/disksup.c
index a30b52e2e8f..d1c0f869efe 100644
--- a/reactos/ntoskrnl/fstub/disksup.c
+++ b/reactos/ntoskrnl/fstub/disksup.c
@@ -305,7 +305,7 @@ xHalQueryDriveLayout(IN PUNICODE_STRING DeviceName,
 
     /* Get the drives sector size */
     Status = IoGetDeviceObjectPointer(DeviceName,
-        FILE_READ_DATA,
+        FILE_READ_ATTRIBUTES,
         &FileObject,
         &DeviceObject);
     if (!NT_SUCCESS(Status))
@@ -481,10 +481,10 @@ xHalIoAssignDriveLetters(IN PLOADER_PARAMETER_BLOCK LoaderBlock,
             NULL);
 
         Status = ZwOpenFile(&FileHandle,
-            0x10001,
+            FILE_READ_DATA | SYNCHRONIZE,
             &ObjectAttributes,
             &StatusBlock,
-            1,
+            FILE_SHARE_READ,
             FILE_SYNCHRONOUS_IO_NONALERT);
         if (NT_SUCCESS(Status))
         {
diff --git a/reactos/ntoskrnl/io/iomgr/arcname.c b/reactos/ntoskrnl/io/iomgr/arcname.c
index 0e7d88cd3de..7c082a11504 100644
--- a/reactos/ntoskrnl/io/iomgr/arcname.c
+++ b/reactos/ntoskrnl/io/iomgr/arcname.c
@@ -154,7 +154,7 @@ IopGetDiskInformation(IN ULONG i,
 
     /* Get the device pointer */
     Status = IoGetDeviceObjectPointer(&DeviceName,
-                                      FILE_READ_DATA,
+                                      FILE_READ_ATTRIBUTES,
                                       &FileObject,
                                       &DeviceObject);
     *DiskDeviceObject = DeviceObject;
diff --git a/reactos/ntoskrnl/io/iomgr/file.c b/reactos/ntoskrnl/io/iomgr/file.c
index fcd24547f62..b61d8f269f6 100644
--- a/reactos/ntoskrnl/io/iomgr/file.c
+++ b/reactos/ntoskrnl/io/iomgr/file.c
@@ -390,27 +390,15 @@ IopParseDevice(IN PVOID ParseObject,
     /* Check if this is a direct open */
     if (!(RemainingName->Length) &&
         !(OpenPacket->RelatedFileObject) &&
-#if 0 // USETUP IS BROKEN!
-        ((DesiredAccess & ~(SYNCHRONIZE |
-                             FILE_READ_ATTRIBUTES |
-                             READ_CONTROL |
-                             ACCESS_SYSTEM_SECURITY |
-                             WRITE_OWNER |
-                             WRITE_DAC)) &&
-#endif
+        (((DesiredAccess & ~(SYNCHRONIZE |
+                            FILE_READ_ATTRIBUTES |
+                            READ_CONTROL |
+                            ACCESS_SYSTEM_SECURITY |
+                            WRITE_OWNER |
+                            WRITE_DAC)) == 0) ||
+         (wcsstr(CompleteName->Buffer, L"Harddisk"))) &&
         !(UseDummyFile))
     {
-        if (DesiredAccess & ~(SYNCHRONIZE |
-                              FILE_READ_ATTRIBUTES |
-                              READ_CONTROL |
-                              ACCESS_SYSTEM_SECURITY |
-                              WRITE_OWNER |
-                              WRITE_DAC))
-        {
-            DPRINT1("FIXME: Broken Parse due to invalid DesiredAccess: %lx\n",
-                    DesiredAccess);
-        }
-
         /* Remember this for later */
         DirectOpen = TRUE;
     }