diff --git a/Apps/FontDemo/main.vp b/Apps/FontDemo/main.vp
index 2f2c9c2..89fc1ca 100644
--- a/Apps/FontDemo/main.vp
+++ b/Apps/FontDemo/main.vp
@@ -6,7 +6,7 @@ import vpsdk.fonttools.fonttools as fonttools
 import string
 from stdint import *
 
-define FONT_PATH = "/FONTS/DEMO.TTF"
+define FONT_PATH = "/FONTS/FONT.TTF"
 define WIN_X = 1000
 define WIN_Y = 500
 define WIN_W = 720
diff --git a/Scripts/disk.ps1 b/Scripts/disk.ps1
index e0e344a..10971fa 100644
--- a/Scripts/disk.ps1
+++ b/Scripts/disk.ps1
@@ -41,7 +41,7 @@ $DISK_IMG = Join-Path $PROJECT_DIR "disk.img"
 $DISK_DIR = Join-Path $PROJECT_DIR "disk"
 $MOUNT_LETTER = "Z:"
 
-$IMAGE_SIZE = 64 * 1024 * 1024
+$IMAGE_SIZE = 256 * 1024 * 1024
 
 Write-Host "=== Creating disk image ===" -ForegroundColor Cyan
 
diff --git a/build.py b/build.py
index 47a15b0..247f79b 100644
--- a/build.py
+++ b/build.py
@@ -89,6 +89,14 @@ def CopyBrotliDict():
         shutil.copy(src, "./disk/libs/brotli.dict")
 
 
+def CopyFonts():
+    """Install the full Source Han Sans / Noto Sans SC font for FontDemo."""
+    os.makedirs("./disk/fonts", exist_ok=True)
+    src = "NotoSansSC/NotoSansSC-6.ttf"
+    if os.path.exists(src):
+        shutil.copy(src, "./disk/fonts/font.ttf")
+
+
 def BuildLibs():
     """编译 Libs/ 下的动态库（应用运行期经 LOAD_SO 加载）。"""
     os.makedirs("./disk/libs", exist_ok=True)
@@ -244,6 +252,7 @@ else:
             print("[build] 跳过内核编译（--app 或 --nokernel）")
         BuildApps()
     BuildBootloader()
+    CopyFonts()
     BuildDisk()
 
 RunQemu()
\ No newline at end of file