diff --git a/install.bat b/install.bat
index a4c155c..eb6bb5c 100644
--- a/install.bat
+++ b/install.bat
@@ -3,15 +3,15 @@ setlocal enabledelayedexpansion
 
 REM 设置环境变量
 SET MICROMAMBA_EXE=%~dp0micromamba.exe
-SET CUDA_HOME="C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.8"
+SET CUDA_HOME=C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.8
 SET PATH=%CUDA_HOME%\bin;%PATH%
 SET PROJECT_DIR=%~dp0
 SET PYTHONDONTWRITEBYTECODE=1
 SET GDOWN_CACHE=cache\gdown
 SET TORCH_HOME=cache\torch
 SET HF_HOME=cache\huggingface
-SET BLENDER_DIR="C:\Program Files\Blender Foundation\Blender 3.6"
-SET VS2019_DIR="C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools"
+SET BLENDER_DIR=C:\Program Files\Blender Foundation\Blender 3.6
+SET VS2019_DIR=C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools
 SET VS2019_VCVARS=%VS2019_DIR%\VC\Auxiliary\Build\vcvars64.bat
 
 REM 检查micromamba
@@ -23,17 +23,17 @@ IF NOT EXIST "%MICROMAMBA_EXE%" (
 
 REM 设置micromamba根目录
 SET MAMBA_ROOT_PREFIX=%PROJECT_DIR%\micromamba
-mkdir %MAMBA_ROOT_PREFIX%
+IF NOT EXIST "%MAMBA_ROOT_PREFIX%" mkdir "%MAMBA_ROOT_PREFIX%"
 
 REM 初始化micromamba
-CALL "%MICROMAMBA_EXE%" shell init --root-prefix=%MAMBA_ROOT_PREFIX%
+CALL "%MICROMAMBA_EXE%" shell init --root-prefix "%MAMBA_ROOT_PREFIX%"
 
 REM 检查必要的环境和依赖
-IF NOT EXIST "%CUDA_HOME%" (
+IF NOT EXIST "%CUDA_HOME%\" (
     echo ERROR: CUDA 11.8 not found at %CUDA_HOME%
     exit /b 1
 )
-IF NOT EXIST "%BLENDER_DIR%" (
+IF NOT EXIST "%BLENDER_DIR%\" (
     echo ERROR: Blender 3.6 not found at %BLENDER_DIR%
     echo Please install Blender 3.6 from https://www.blender.org/download/lts/3-6/
     exit /b 1
@@ -47,7 +47,7 @@ IF NOT EXIST "%VS2019_VCVARS%" (
 )
 
 REM 检查CUDA版本
-nvcc --version | findstr "release 11.8" >nul
+nvcc --version 2>nul | findstr "release 11.8" >nul
 IF %ERRORLEVEL% NEQ 0 (
     echo ERROR: CUDA 11.8 not found or version mismatch
     exit /b 1