diff --git a/INSTALL/grub/grub.cfg b/INSTALL/grub/grub.cfg
index 5b1e3007..d1b7c960 100644
--- a/INSTALL/grub/grub.cfg
+++ b/INSTALL/grub/grub.cfg
@@ -35,12 +35,10 @@ function ventoy_debug_pause {
 
 
 function ventoy_max_resolution {
-    #Skip this for VM
+    #Skip this for VirtualBox
     smbios -t 1 -s 0x05 --set=system_product;
-    for vtPdt in "VMware"  "VirtualBox"; then
-        if vt_str_casebegin "$system_product"  "$vtPdt"; then
-            return
-        fi
+    if vt_str_casebegin "$system_product"  "VirtualBox"; then
+        return
     fi
 
     vt_enum_video_mode