diff --git a/windows_cygwin/build.bat b/windows_cygwin/build.bat
index 86839a21..ecf14db8 100644
--- a/windows_cygwin/build.bat
+++ b/windows_cygwin/build.bat
@@ -1 +1,3 @@
-powershell -NoProfile -ExecutionPolicy Bypass -Command "windows_cygwin\build.ps1"
+choco install -y firefox googlechrome cygwin
+refreshenv
+
diff --git a/windows_cygwin/build.ps1 b/windows_cygwin/build.ps1
deleted file mode 100755
index 434d75c9..00000000
--- a/windows_cygwin/build.ps1
+++ /dev/null
@@ -1,12 +0,0 @@
-# install Chocolatey
-iwr https://chocolatey.org/install.ps1 -UseBasicParsing | iex
-
-# install base tools
-choco install -y firefox
-choco install -y googlechrome
-
-# install cygwin and all things inside
-choco install -y cygwin cyg-get
-
-cyg-get git
-