diff --git a/INSTALL/docker_ci_build.sh b/INSTALL/docker_ci_build.sh
index 4168d077..eacde02e 100644
--- a/INSTALL/docker_ci_build.sh
+++ b/INSTALL/docker_ci_build.sh
@@ -5,19 +5,45 @@ VTOY_PATH=$PWD/..
 date +"%Y/%m/%d %H:%M:%S"
 echo downloading environment ...
 
-wget -q -P $VTOY_PATH/DOC/ https://github.com/ventoy/vtoytoolchain/releases/download/1.0/dietlibc-0.34.tar.xz
-wget -q -P $VTOY_PATH/DOC/ https://github.com/ventoy/vtoytoolchain/releases/download/1.0/musl-1.2.1.tar.gz
-wget -q -P $VTOY_PATH/GRUB2/ https://github.com/ventoy/vtoytoolchain/releases/download/1.0/grub-2.04.tar.xz
-wget -q -O $VTOY_PATH/EDK2/edk2-edk2-stable201911.zip https://codeload.github.com/tianocore/edk2/zip/edk2-stable201911
-wget -q -P /opt/ https://github.com/ventoy/vtoytoolchain/releases/download/1.0/gcc-linaro-7.4.1-2019.02-x86_64_aarch64-linux-gnu.tar.xz
-wget -q -P /opt/ https://github.com/ventoy/vtoytoolchain/releases/download/1.0/aarch64--uclibc--stable-2020.08-1.tar.bz2
-wget -q -P /opt/ https://github.com/ventoy/vtoytoolchain/releases/download/1.0/mips-loongson-gcc7.3-2019.06-29-linux-gnu.tar.gz
+wget -P $VTOY_PATH/DOC/ https://github.com/ventoy/vtoytoolchain/releases/download/1.0/dietlibc-0.34.tar.xz
+wget -P $VTOY_PATH/DOC/ https://github.com/ventoy/vtoytoolchain/releases/download/1.0/musl-1.2.1.tar.gz
+wget -P $VTOY_PATH/GRUB2/ https://github.com/ventoy/vtoytoolchain/releases/download/1.0/grub-2.04.tar.xz
+wget -O $VTOY_PATH/EDK2/edk2-edk2-stable201911.zip https://codeload.github.com/tianocore/edk2/zip/edk2-stable201911
+wget -P /opt/ https://github.com/ventoy/vtoytoolchain/releases/download/1.0/gcc-linaro-7.4.1-2019.02-x86_64_aarch64-linux-gnu.tar.xz
+wget -P /opt/ https://github.com/ventoy/vtoytoolchain/releases/download/1.0/aarch64--uclibc--stable-2020.08-1.tar.bz2
+wget -P /opt/ https://github.com/ventoy/vtoytoolchain/releases/download/1.0/mips-loongson-gcc7.3-2019.06-29-linux-gnu.tar.gz
 
-wget -q -O $VTOY_PATH/ExFAT/exfat-1.3.0.zip  https://codeload.github.com/relan/exfat/zip/v1.3.0
-wget -q -O $VTOY_PATH/ExFAT/libfuse-fuse-2.9.9.zip  https://codeload.github.com/libfuse/libfuse/zip/fuse-2.9.9
+wget -O $VTOY_PATH/ExFAT/exfat-1.3.0.zip  https://codeload.github.com/relan/exfat/zip/v1.3.0
+wget -O $VTOY_PATH/ExFAT/libfuse-fuse-2.9.9.zip  https://codeload.github.com/libfuse/libfuse/zip/fuse-2.9.9
 
 
 date +"%Y/%m/%d %H:%M:%S"
 echo downloading environment finish...
 
+
+
+date +"%Y/%m/%d %H:%M:%S"
+echo downloading upstream pre-built binrary files ...
+
+#7za.exe 
+echo "download 7za.exe"
+mkdir -p $VTOY_PATH/INSTALL/ventoy/7z/64  $VTOY_PATH/INSTALL/ventoy/7z/32
+wget -O $VTOY_PATH/INSTALL/ventoy/7z/64/7za  https://github.com/ventoy/7zip/releases/download/ventoy-7zip-2605/7za-x64.exe
+wget -O $VTOY_PATH/INSTALL/ventoy/7z/32/7za  https://github.com/ventoy/7zip/releases/download/ventoy-7zip-2605/7za-x86.exe
+wget -O /tmp/7z-checksum  https://github.com/ventoy/7zip/releases/download/ventoy-7zip-2605/SHA256SUMS
+sed "s#7za-x64.exe#$VTOY_PATH/INSTALL/ventoy/7z/64/7za#g"  -i /tmp/7z-checksum
+sed "s#7za-x86.exe#$VTOY_PATH/INSTALL/ventoy/7z/32/7za#g"  -i /tmp/7z-checksum
+sha256sum -c /tmp/7z-checksum || exit 1
+echo "7za checksum success"
+xz --check=crc32 $VTOY_PATH/INSTALL/ventoy/7z/64/7za
+xz --check=crc32 $VTOY_PATH/INSTALL/ventoy/7z/32/7za
+
+
+#
+
+
+
+echo downloading upstream pre-built binrary files finish...
+
+
 sh all_in_one.sh CI
diff --git a/INSTALL/ventoy/7z/32/7za.xz b/INSTALL/ventoy/7z/32/7za.xz
deleted file mode 100644
index 927e25a1..00000000
Binary files a/INSTALL/ventoy/7z/32/7za.xz and /dev/null differ
diff --git a/INSTALL/ventoy/7z/64/7za.xz b/INSTALL/ventoy/7z/64/7za.xz
deleted file mode 100644
index bf52734d..00000000
Binary files a/INSTALL/ventoy/7z/64/7za.xz and /dev/null differ