diff --git a/src/gui/Core/hiperiso_util.c b/src/gui/Core/hiperiso_util.c
index d8fc90c..b2831e9 100644
--- a/src/gui/Core/hiperiso_util.c
+++ b/src/gui/Core/hiperiso_util.c
@@ -383,8 +383,6 @@ int hiperiso_fill_gpt(uint64_t size, uint64_t reserve, int align4k, HISO_GPT_INF
     HISO_GPT_HDR *Head = &gpt->Head;
     HISO_GPT_PART_TBL *Table = gpt->PartTbl;
     hiperiso_guid WindowsDataPartType = { 0xebd0a0a2, 0xb9e5, 0x4433, { 0x87, 0xc0, 0x68, 0xb6, 0xb7, 0x26, 0x99, 0xc7 } };
-    //hiperiso_guid EspPartType = { 0xc12a7328, 0xf81f, 0x11d2, { 0xba, 0x4b, 0x00, 0xa0, 0xc9, 0x3e, 0xc9, 0x3b } };
-	//hiperiso_guid BiosGrubPartType = { 0x21686148, 0x6449, 0x6e6f, { 0x74, 0x4e, 0x65, 0x65, 0x64, 0x45, 0x46, 0x49 } };
 
     HiperisoFillProtectMBR(size, &gpt->MBR);
 
@@ -436,8 +434,7 @@ int hiperiso_fill_gpt(uint64_t size, uint64_t reserve, int align4k, HISO_GPT_INF
     Table[0].Attr = 0;
     hiperiso_fill_gpt_partname(Table[0].Name, "Hiperiso");
 
-    // to fix windows issue
-    //memcpy(&(Table[1].PartType), &EspPartType, sizeof(GUID));
+    // Use msftdata for partition 2 (Ventoy-compatible: both partitions visible + boots)
     memcpy(&(Table[1].PartType), &WindowsDataPartType, sizeof(hiperiso_guid));
     hiperiso_gen_preudo_uuid(&(Table[1].PartGuid));
     Table[1].StartLBA = Table[0].LastLBA + 1;
diff --git a/src/gui/Web/hiperiso_http.c b/src/gui/Web/hiperiso_http.c
index bf3444a..6a79b72 100644
--- a/src/gui/Web/hiperiso_http.c
+++ b/src/gui/Web/hiperiso_http.c
@@ -46,7 +46,7 @@ static int g_pub_out_max = 0;
 
 static pthread_mutex_t g_api_mutex;
 static char g_cur_language[128];
-static int  g_cur_part_style = 0;
+static int  g_cur_part_style = 1;
 static int  g_cur_show_all = 0;
 static char g_cur_server_token[64];
 static struct mg_context *g_hiperiso_http_ctx = NULL;
diff --git a/src/hisocli/hisogpt.c b/src/hisocli/hisogpt.c
index d903309..ebd6a95 100644
--- a/src/hisocli/hisogpt.c
+++ b/src/hisocli/hisogpt.c
@@ -189,7 +189,7 @@ int hisogpt_main(int argc, char **argv)
         read(fd, pBackGptInfo, sizeof(HISO_BK_GPT_INFO));
 
         Name = pMainGptInfo->PartTbl[1].Name;
-        if (Name[0] == 'V' && Name[1] == 'T' && Name[2] == 'O' && Name[3] == 'Y')
+        if (Name[0] == 'H' && Name[1] == 'I' && Name[2] == 'S' && Name[3] == 'O')
         {
             if (pMainGptInfo->PartTbl[1].Attr != HIPERISO_EFI_PART_ATTR)
             {                
diff --git a/src/hisocli/partresize.c b/src/hisocli/partresize.c
index 8e5491b..ce55d94 100644
--- a/src/hisocli/partresize.c
+++ b/src/hisocli/partresize.c
@@ -590,7 +590,6 @@ static int update_part_table(char *disk, UINT64 part2start)
 			memcpy(PartTbl + (j + 1), PartTbl + j, sizeof(HISO_GPT_PART_TBL));
 		}
 
-        // to fix windows issue
         memset(PartTbl + 1, 0, sizeof(HISO_GPT_PART_TBL));
 		memcpy(&(PartTbl[1].PartType), &g_WindowsDataPartGuid, sizeof(GUID));
 		hiperiso_gen_preudo_uuid(&(PartTbl[1].PartGuid));
@@ -600,10 +599,10 @@ static int update_part_table(char *disk, UINT64 part2start)
         PartTbl[1].StartLBA = PartTbl[0].LastLBA + 1;
 		PartTbl[1].LastLBA = PartTbl[1].StartLBA + HIPERISO_EFI_PART_SIZE / 512 - 1;
 		PartTbl[1].Attr = HIPERISO_EFI_PART_ATTR;
-        PartTbl[1].Name[0] = 'V';
-        PartTbl[1].Name[1] = 'T';
-        PartTbl[1].Name[2] = 'O';
-        PartTbl[1].Name[3] = 'Y';
+        PartTbl[1].Name[0] = 'H';
+        PartTbl[1].Name[1] = 'I';
+        PartTbl[1].Name[2] = 'S';
+        PartTbl[1].Name[3] = 'O';
         PartTbl[1].Name[4] = 'E';
         PartTbl[1].Name[5] = 'F';
         PartTbl[1].Name[6] = 'I';