diff --git a/content/dev/build/windows/_index.en.md b/content/dev/build/windows/_index.en.md
index 82a5a92..077e269 100644
--- a/content/dev/build/windows/_index.en.md
+++ b/content/dev/build/windows/_index.en.md
@@ -8,13 +8,15 @@ weight: 20
 ### C++ build environment
 
 Download [msvc](https://visualstudio.microsoft.com/) and install.
+Select `Windows` as Developer machine OS and check `C++`, then download Visual Studo Community version and install. The installation may take a while.
 
 ### Rust develop environment
-Download [rustup-init.exe](https://static.rust-lang.org/rustup/dist/x86_64-pc-windows-msvc/rustup-init.exe) and install.
+Download [rustup-init.exe](https://static.rust-lang.org/rustup/dist/x86_64-pc-windows-msvc/rustup-init.exe) and run it as administrator to install `rust`.
 
 ### vcpkg
 
-Use [git-bash](https://git-scm.com/download/win) to run the following commands， download `vcpkg`, install `libvpx`, `libyuv`, `opus`.
+Go to the folder you want to clong vcpkg and use [git-bash](https://git-scm.com/download/win) to run the following commands， download `vcpkg`, install 64bit version of `libvpx`, `libyuv` and `opus`.
+If you don't have `git` installed, get `git` [here](https://git-scm.com/download/win).
 
 ```shell
   git clone https://github.com/microsoft/vcpkg
@@ -26,7 +28,7 @@ Use [git-bash](https://git-scm.com/download/win) to run the following commands
   vcpkg/vcpkg install libvpx:x64-windows-static libyuv:x64-windows-static opus:x64-windows-static
 ```
 
-Add environment variable `VCPKG_ROOT`=`<path>\vcpkg`.
+Add System environment variable `VCPKG_ROOT`=`<path>\vcpkg`. The `<path>` should be the folder you choosed above.
 
 ![](/docs/en/dev/build/windows/images/env.png)
 
@@ -36,7 +38,7 @@ Desktop versions use [sciter](https://sciter.com/) for GUI, please download [sci
 
 ### llvm
 
-rust-bindgen depends on clang,  download [llvm](https://github.com/llvm/llvm-project/releases) and install，add environment variable `LIBCLANG_PATH`=`<llvm_install_dir>/bin`.
+rust-bindgen depends on clang,  download [llvm](https://github.com/llvm/llvm-project/releases) and install，add System environment variable `LIBCLANG_PATH`=`<llvm_install_dir>/bin`.
 
 You can download 15.02 of the LLVM binaries here: [64-bit](https://github.com/llvm/llvm-project/releases/download/llvmorg-15.0.2/LLVM-15.0.2-win64.exe) / [32-bit](https://github.com/llvm/llvm-project/releases/download/llvmorg-15.0.2/LLVM-15.0.2-win32.exe)