diff --git a/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/Ventoy.c b/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/Ventoy.c
index 67e6881a..8341f314 100644
--- a/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/Ventoy.c
+++ b/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/Ventoy.c
@@ -577,7 +577,8 @@ STATIC EFI_STATUS EFIAPI ventoy_find_iso_disk(IN EFI_HANDLE ImageHandle)
             continue;
         }
 
-        if (CompareMem(g_chain->os_param.vtoy_disk_guid, pBuffer + 0x180, 16) == 0)
+        if (CompareMem(g_chain->os_param.vtoy_disk_guid, pBuffer + 0x180, 16) == 0 &&
+            CompareMem(g_chain->os_param.vtoy_disk_signature, pBuffer + 0x1b8, 4) == 0)
         {
             pMBR = (MBR_HEAD *)pBuffer;
             if (g_os_param_reserved[6] == 0 && pMBR->PartTbl[0].FsFlag != 0xEE)
@@ -599,7 +600,7 @@ STATIC EFI_STATUS EFIAPI ventoy_find_iso_disk(IN EFI_HANDLE ImageHandle)
                               Handles[i],
                               EFI_OPEN_PROTOCOL_GET_PROTOCOL);
             
-            debug("Find Ventoy Disk Handle:%p DP:%s", Handles[i], 
+            debug("Find Ventoy Disk Sig Handle:%p DP:%s", Handles[i], 
                 ConvertDevicePathToText(gBlockData.pDiskDevPath, FALSE, FALSE));
             break;
         }
diff --git a/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/Ventoy.h b/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/Ventoy.h
index 30ed3c5c..0e2b3fa8 100644
--- a/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/Ventoy.h
+++ b/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/Ventoy.h
@@ -98,7 +98,9 @@ typedef struct ventoy_os_param
     
     UINT64  vtoy_reserved[4];     // Internal use by ventoy
 
-    UINT8   reserved[31];
+    UINT8   vtoy_disk_signature[4];
+
+    UINT8   reserved[27];
 }ventoy_os_param;
 
 #pragma pack()
diff --git a/INSTALL/ventoy/ventoy_aa64.efi b/INSTALL/ventoy/ventoy_aa64.efi
index e240dbb8..20823370 100644
Binary files a/INSTALL/ventoy/ventoy_aa64.efi and b/INSTALL/ventoy/ventoy_aa64.efi differ
diff --git a/INSTALL/ventoy/ventoy_ia32.efi b/INSTALL/ventoy/ventoy_ia32.efi
index dad50d66..dd1b9ec3 100644
Binary files a/INSTALL/ventoy/ventoy_ia32.efi and b/INSTALL/ventoy/ventoy_ia32.efi differ
diff --git a/INSTALL/ventoy/ventoy_x64.efi b/INSTALL/ventoy/ventoy_x64.efi
index 3facee7e..24c37658 100644
Binary files a/INSTALL/ventoy/ventoy_x64.efi and b/INSTALL/ventoy/ventoy_x64.efi differ