diff --git a/PF-build.sh b/PF-build.sh
index 984df8a5..9cbedd54 100755
--- a/PF-build.sh
+++ b/PF-build.sh
@@ -56,7 +56,7 @@
 #   Some may argue that this is only used by a script, BUT as soon someone accidentally or on purpose starts Arduino IDE
 #   it will use the default Arduino IDE folders and so can corrupt the build environment.
 #
-# Version: 1.0.6-Build_10
+# Version: 1.0.6-Build_12
 # Change log:
 # 12 Jan 2019, 3d-gussner, Fixed "compiler.c.elf.flags=-w -Os -Wl,-u,vfprintf -lprintf_flt -lm -Wl,--gc-sections" in 'platform.txt'
 # 16 Jan 2019, 3d-gussner, Build_2, Added development check to modify 'Configuration.h' to prevent unwanted LCD messages that Firmware is unknown
@@ -114,7 +114,9 @@
 # 26 Jul 2019, 3d-gussner, Change JSON repository to prusa3d after PR https://github.com/prusa3d/Arduino_Boards/pull/1 was merged
 # 23 Sep 2019, 3d-gussner, Prepare PF-build.sh for comming Prusa3d/Arduino_Boards version 1.0.2 Pull Request
 # 17 Oct 2019, 3d-gussner, Changed folder and check file names to have seperated build enviroments depening on Arduino IDE version and
-#                          board-versions. 
+#                          board-versions.
+# 15 Dec 2019, 3d-gussner, Prepare for switch to Prusa3d/PF-build-env repository
+# 15 Dec 2019, 3d-gussner, Fix Audrino user preferences for the chosen board.
 #### Start check if OSTYPE is supported
 OS_FOUND=$( command -v uname)
 
@@ -219,7 +221,8 @@ BOARD_VERSION="1.0.2"
 BOARD_URL="https://raw.githubusercontent.com/prusa3d/Arduino_Boards/master/IDE_Board_Manager/package_prusa3d_index.json"
 BOARD_FILENAME="prusa3dboards"
 BOARD_FILE_URL="https://raw.githubusercontent.com/prusa3d/Arduino_Boards/master/IDE_Board_Manager/prusa3dboards-1.0.2.tar.bz2"
-PF_BUILD_FILE_URL="https://github.com/3d-gussner/PF-build-env/releases/download/$BUILD_ENV/PF-build-env-$BUILD_ENV.zip"
+PF_BUILD_FILE_URL="https://github.com/3d-gussner/PF-build-env-1/releases/download/$BUILD_ENV-WinLin/PF-build-env-WinLin-$BUILD_ENV.zip"
+#PF_BUILD_FILE_URL="https://github.com/prusa3d/PF-build-env/releases/download/$BUILD_ENV-WinLin/PF-build-env-WinLin-$BUILD_ENV.zip"
 LIB="PrusaLibrary"
 SCRIPT_PATH="$( cd "$(dirname "$0")" ; pwd -P )"
 
@@ -321,7 +324,7 @@ if [ ! -e ../PF-build-env-$BUILD_ENV/Preferences-$ARDUINO_ENV-$BOARD_VERSION-$TA
 	echo "update.check"
 	sed -i 's/update.check = true/update.check = false/g' ../PF-build-env-$BUILD_ENV/$ARDUINO_ENV-$BOARD_VERSION-$TARGET_OS-$Processor/lib/preferences.txt
 	echo "board"
-	sed -i 's/board = uno/board = $BOARD/g' ../PF-build-env-$BUILD_ENV/$ARDUINO_ENV-$BOARD_VERSION-$TARGET_OS-$Processor/lib/preferences.txt
+	sed -i "s/board = uno/board = $BOARD/g" ../PF-build-env-$BUILD_ENV/$ARDUINO_ENV-$BOARD_VERSION-$TARGET_OS-$Processor/lib/preferences.txt
 	echo "editor.linenumbers"
 	sed -i 's/editor.linenumbers = false/editor.linenumbers = true/g' ../PF-build-env-$BUILD_ENV/$ARDUINO_ENV-$BOARD_VERSION-$TARGET_OS-$Processor/lib/preferences.txt
 	echo "boardsmanager.additional.urls"
@@ -364,7 +367,7 @@ if [[ ! -d "../PF-build-env-$BUILD_ENV/$ARDUINO_ENV-$BOARD_VERSION-$TARGET_OS-$P
 fi	
 
 # Download and extract Prusa Firmware specific library files
-if [ ! -f "PF-build-env-$BUILD_ENV.zip" ]; then
+if [ ! -f "PF-build-env-WinLin-$BUILD_ENV.zip" ]; then
 	echo "$(tput setaf 6)Downloading Prusa Firmware build environment...$(tput setaf 2)"
 	sleep 2
 	wget $PF_BUILD_FILE_URL || exit 11
@@ -373,7 +376,7 @@ fi
 if [ ! -e "../PF-build-env-$BUILD_ENV/PF-build-env-$BUILD_ENV-$ARDUINO_ENV-$BOARD_VERSION-$TARGET_OS-$Processor.txt" ]; then
 	echo "$(tput setaf 6)Unzipping Prusa Firmware build environment...$(tput setaf 2)"
 	sleep 2
-	unzip -o PF-build-env-$BUILD_ENV.zip -d ../PF-build-env-$BUILD_ENV/$ARDUINO_ENV-$BOARD_VERSION-$TARGET_OS-$Processor || exit 12
+	unzip -o PF-build-env-WinLin-$BUILD_ENV.zip -d ../PF-build-env-$BUILD_ENV/$ARDUINO_ENV-$BOARD_VERSION-$TARGET_OS-$Processor || exit 12
 	echo "# PF-build-env-$ARDUINO_ENV-$BOARD_VERSION-$TARGET_OS-$Processor-$BUILD_ENV" >> ../PF-build-env-$BUILD_ENV/PF-build-env-$BUILD_ENV-$ARDUINO_ENV-$BOARD_VERSION-$TARGET_OS-$Processor.txt
 	echo "$(tput sgr0)"
 fi