diff --git a/util/msys2_install.sh b/util/msys2_install.sh
index aed6c42b..1b99806b 100644
--- a/util/msys2_install.sh
+++ b/util/msys2_install.sh
@@ -1,14 +1,52 @@
 #!/bin/bash
 
 dir=$(cd -P -- "$(dirname -- "$0")" && pwd -P)
+download_dir=~/qmk_utils
+avrtools=avr8-gnu-toolchain
 
 echo "Installing dependencies needed for the installation (quazip)"
-pacman --needed -S msys/unzip
+pacman --needed -S msys/unzip msys/p7zip
+
 
-export download_dir=~/qmk_utils
 
 source "$dir/win_shared_install.sh"
 
+function install_avr {
+    rm -f -r "$avrtools"
+    wget "http://www.atmel.com/images/avr8-gnu-toolchain-installer-3.5.4.91-win32.any.x86.exe"
+    7z x avr8-gnu-toolchain-installer-3.5.4.91-win32.any.x86.exe
+    rm avr8-gnu-toolchain-installer-3.5.4.91-win32.any.x86.exe
+}
+
+pushd "$download_dir"
+
+
+if [ ! -d "$avrtools" ]; then
+    while true; do
+        echo
+        echo "The AVR toolchain is not installed."
+        echo "This is needed for building AVR based keboards."
+        read -p "Do you want to install it? (Y/N) " res
+        case $res in
+            [Yy]* ) install_avr; break;;
+            [Nn]* ) break;;
+            * ) echo "Invalid answer";;
+        esac
+    done
+else
+    while true; do
+        echo
+        echo "The AVR toolchain is already installed"
+        read -p "Do you want to reinstall? (Y/N) " res
+        case $res in
+            [Yy]* ) install_avr; break;;
+            [Nn]* ) break;;
+            * ) echo "Invalid answer";;
+        esac
+    done
+fi
+popd
+
 echo
 echo "******************************************************************************"
 echo "Installation completed!"