diff --git a/src/ext2fs/nt_io.c b/src/ext2fs/nt_io.c
index 99643634..87dbb859 100644
--- a/src/ext2fs/nt_io.c
+++ b/src/ext2fs/nt_io.c
@@ -280,11 +280,9 @@ static __inline NTSTATUS _DismountDrive(IN HANDLE Handle)
 static __inline BOOLEAN _IsMounted(IN HANDLE Handle)
 {
 	IO_STATUS_BLOCK IoStatusBlock;
-	NTSTATUS Status = STATUS_DLL_NOT_FOUND;
 	PF_INIT(NtFsControlFile, NtDll);
-	if (pfNtFsControlFile != NULL)
-		pfNtFsControlFile(Handle, 0, 0, 0, &IoStatusBlock, FSCTL_IS_VOLUME_MOUNTED, 0, 0, 0, 0);
-	return (BOOLEAN)(Status == STATUS_SUCCESS);
+	return (pfNtFsControlFile == NULL) ? STATUS_DLL_NOT_FOUND :
+		(BOOLEAN)(pfNtFsControlFile(Handle, 0, 0, 0, &IoStatusBlock, FSCTL_IS_VOLUME_MOUNTED, 0, 0, 0, 0) == STATUS_SUCCESS);
 }
 
 static __inline NTSTATUS _CloseDisk(IN HANDLE Handle)
diff --git a/src/rufus.rc b/src/rufus.rc
index 8fc4a7f4..7462679a 100644
--- a/src/rufus.rc
+++ b/src/rufus.rc
@@ -33,7 +33,7 @@ LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
 IDD_DIALOG DIALOGEX 12, 12, 232, 326
 STYLE DS_SETFONT | DS_MODALFRAME | DS_CENTER | WS_MINIMIZEBOX | WS_POPUP | WS_CAPTION | WS_SYSMENU
 EXSTYLE WS_EX_ACCEPTFILES
-CAPTION "Rufus 3.9.1620"
+CAPTION "Rufus 3.9.1621"
 FONT 9, "Segoe UI Symbol", 400, 0, 0x0
 BEGIN
     LTEXT           "Drive Properties",IDS_DRIVE_PROPERTIES_TXT,8,6,53,12,NOT WS_GROUP
@@ -395,8 +395,8 @@ END
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 3,9,1620,0
- PRODUCTVERSION 3,9,1620,0
+ FILEVERSION 3,9,1621,0
+ PRODUCTVERSION 3,9,1621,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -414,13 +414,13 @@ BEGIN
             VALUE "Comments", "https://rufus.ie"
             VALUE "CompanyName", "Akeo Consulting"
             VALUE "FileDescription", "Rufus"
-            VALUE "FileVersion", "3.9.1620"
+            VALUE "FileVersion", "3.9.1621"
             VALUE "InternalName", "Rufus"
             VALUE "LegalCopyright", "© 2011-2020 Pete Batard (GPL v3)"
             VALUE "LegalTrademarks", "https://www.gnu.org/licenses/gpl-3.0.html"
             VALUE "OriginalFilename", "rufus-3.9.exe"
             VALUE "ProductName", "Rufus"
-            VALUE "ProductVersion", "3.9.1620"
+            VALUE "ProductVersion", "3.9.1621"
         END
     END
     BLOCK "VarFileInfo"