diff --git a/src/drive.c b/src/drive.c
index c6c33103..05aae478 100644
--- a/src/drive.c
+++ b/src/drive.c
@@ -167,7 +167,7 @@ char* GetPhysicalName(DWORD DriveIndex)
 	char physical_name[24];
 
 	CheckDriveIndex(DriveIndex);
-	safe_sprintf(physical_name, sizeof(physical_name), "\\\\.\\PHYSICALDRIVE%d", DriveIndex);
+	safe_sprintf(physical_name, sizeof(physical_name), "\\\\.\\PHYSICALDRIVE%lu", DriveIndex);
 	success = TRUE;
 out:
 	return (success)?safe_strdup(physical_name):NULL;
diff --git a/src/net.c b/src/net.c
index d47ce7a3..bf1f9f81 100644
--- a/src/net.c
+++ b/src/net.c
@@ -203,7 +203,7 @@ const char* WinInetErrorString(void)
 		InternetGetLastResponseInfoA(&error_code, error_string, &size);
 		return error_string;
 	default:
-		safe_sprintf(error_string, sizeof(error_string), "Unknown internet error 0x%08X", error_code);
+		safe_sprintf(error_string, sizeof(error_string), "Unknown internet error 0x%08luX", error_code);
 		return error_string;
 	}
 }
@@ -490,7 +490,7 @@ static DWORD WINAPI CheckForUpdatesThread(LPVOID param)
 		// and then remove each each of the <os_> components until we find our match. For instance, we may first
 		// look for rufus_win_x64_6.2.ver (Win8 x64) but only get a match for rufus_win_x64_6.ver (Vista x64 or later)
 		// This allows sunsetting OS versions (eg XP) or providing different downloads for different archs/groups.
-		safe_sprintf(urlpath, sizeof(urlpath), "%s%s%s_%s_%d.%d.ver", APPLICATION_NAME, (k==0)?"":"_",
+		safe_sprintf(urlpath, sizeof(urlpath), "%s%s%s_%s_%lu.%lu.ver", APPLICATION_NAME, (k==0)?"":"_",
 			(k==0)?"":channel[k], archname[is_x64()?1:0], os_version.dwMajorVersion, os_version.dwMinorVersion);
 		vuprintf("Base update check: %s\n", urlpath);
 		for (i=0, j=(int)safe_strlen(urlpath)-5; (j>0)&&(i<ARRAYSIZE(verpos)); j--) {
diff --git a/src/rufus.rc b/src/rufus.rc
index 0d872838..c26175f5 100644
--- a/src/rufus.rc
+++ b/src/rufus.rc
@@ -33,7 +33,7 @@ LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
 IDD_DIALOG DIALOGEX 12, 12, 242, 376
 STYLE DS_SETFONT | DS_MODALFRAME | DS_CENTER | WS_MINIMIZEBOX | WS_POPUP | WS_CAPTION | WS_SYSMENU
 EXSTYLE WS_EX_ACCEPTFILES
-CAPTION "Rufus 2.10.942"
+CAPTION "Rufus 2.10.943"
 FONT 8, "Segoe UI Symbol", 400, 0, 0x0
 BEGIN
     LTEXT           "Device",IDS_DEVICE_TXT,9,6,200,8
@@ -320,8 +320,8 @@ END
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 2,10,942,0
- PRODUCTVERSION 2,10,942,0
+ FILEVERSION 2,10,943,0
+ PRODUCTVERSION 2,10,943,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -338,13 +338,13 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Akeo Consulting (http://akeo.ie)"
             VALUE "FileDescription", "Rufus"
-            VALUE "FileVersion", "2.10.942"
+            VALUE "FileVersion", "2.10.943"
             VALUE "InternalName", "Rufus"
             VALUE "LegalCopyright", "© 2011-2016 Pete Batard (GPL v3)"
             VALUE "LegalTrademarks", "http://www.gnu.org/copyleft/gpl.html"
             VALUE "OriginalFilename", "rufus.exe"
             VALUE "ProductName", "Rufus"
-            VALUE "ProductVersion", "2.10.942"
+            VALUE "ProductVersion", "2.10.943"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/src/stdio.c b/src/stdio.c
index 50d8f467..58450399 100644
--- a/src/stdio.c
+++ b/src/stdio.c
@@ -148,7 +148,7 @@ static char err_string[256] = {0};
 
 	error_code = GetLastError();
 
-	safe_sprintf(err_string, sizeof(err_string), "[0x%08X] ", error_code);
+	safe_sprintf(err_string, sizeof(err_string), "[0x%08luX] ", error_code);
 
 	size = FormatMessageU(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS, NULL, HRESULT_CODE(error_code),
 		MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), &err_string[strlen(err_string)],
@@ -157,9 +157,9 @@ static char err_string[256] = {0};
 		format_error = GetLastError();
 		if ((format_error) && (format_error != 0x13D))		// 0x13D, decode error, is returned for unknown codes
 			safe_sprintf(err_string, sizeof(err_string),
-				"Windows error code 0x%08X (FormatMessage error code 0x%08X)", error_code, format_error);
+				"Windows error code 0x%08luX (FormatMessage error code 0x%08luX)", error_code, format_error);
 		else
-			safe_sprintf(err_string, sizeof(err_string), "Unknown error 0x%08X", error_code);
+			safe_sprintf(err_string, sizeof(err_string), "Unknown error 0x%08luX", error_code);
 	}
 
 	SetLastError(error_code);	// Make sure we don't change the errorcode on exit