diff --git a/README.md b/README.md
index 1c96362..729737b 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,12 @@
 
 just a few of my bash scripts
 
-upd: 		 calls several update scripts 
+upd: 		     calls several update scripts 
 
-update-kodi: 	 lets you scan or clean the video / audio database or reboot a kodi host (osmc/coreelec...)
+update-kodi: 	     lets you scan or clean the video / audio database or reboot a kodi host (osmc/coreelec...)
  
-backup-yunohost: triggers yunohost backups from another linux host, copies, prunes, gzips
+backup-yunohost:     triggers yunohost backups from another linux host, copies, prunes, gzips
+
+checkip.sh: 	     check your public IP address
+
+mk_win11_install.sh: create a bootable USB-stick from Windows 11 installation.iso on macOS
diff --git a/mk_win11_install.sh b/mk_win11_install.sh
new file mode 100755
index 0000000..84656ce
--- /dev/null
+++ b/mk_win11_install.sh
@@ -0,0 +1,94 @@
+#!/usr/bin/env bash
+if [ -z "${1}" -o "${2}" ] 
+then
+	echo falsch
+	exit 1
+fi
+if [ ${1:0:4} = disk -a ${#1} -eq 5 ]
+then
+#	echo richtig, genau ein parameter ${1:0:4} wurde übergeben!
+	diskdev=${1}
+	diskutil list external physical $diskdev | grep ${diskdev} >/dev/null 2>&1
+	if [ $? -ne 0 ]
+	then
+		echo no external physical device ${diskdev} found
+	else
+		echo
+		echo Preparing to create Windows Installation Media on:
+		echo
+		diskutil list external physical $diskdev
+		echo
+		echo "are you absolutely sure that you do not need the data on ${diskdev}"
+		echo "and want to proceed formatting and overwriting it? enter yes (otherwise anything else or ctrl-c)"
+		echo
+		read a
+		if [ "${a}" != "yes" ]
+		then
+			echo "ok, aborting ..."
+			exit 1
+		fi
+	fi
+else
+	echo only one parameter allowed: disk0 to disk9
+fi
+type wimlib-imagex >/dev/null 2>&1
+if [ $? -ne 0 ]
+then
+	echo wimlib-imagex could not be found
+	echo Aborting ...
+	exit 1
+fi
+echo Formatting ...
+sleep 5
+diskutil eraseDisk MS-DOS WINDOWS11 MBR ${diskdev}
+df -T udf | grep CCCOMA
+if [ $? -ne 0 ]
+then
+	echo "DVD/iso not mounted, want to mount ~/Downloads/Win11_23H2_English_x64v2.iso (yes/no)"
+	read a
+	if [ ${a} != "yes" ]
+        then
+                echo "ok, aborting ..."
+                exit 1
+	else
+		open ~/Downloads/Win11_23H2_English_x64v2.iso
+		sleep 5
+        fi
+fi
+df -T udf | grep CCCOMA
+if [ $? -ne 0 ]
+then
+	echo something went wrong, iso not mounted as CCCOMA
+	echo maybe it is unmounted but not ejected?
+	echo please have a look:
+	diskutil list virtual 
+	echo aborting ...
+	exit 1
+fi
+df -T msdos | grep WINDOWS11
+if [ $? -ne 0 ]
+then   
+	echo can not find USB drive named WINDOWS11
+	echo aborting...
+	exit 1
+fi
+rsync -ha --progress --exclude=sources/install.wim /Volumes/CCCOMA_X64FRE_EN-US_DV9/* /Volumes/WINDOWS11
+RC=$?
+if [ ${RC} -ne 0 ]
+then    
+        echo something went wrong with rsync, rc=${RC}
+        echo aborting...
+        exit 1
+fi              
+wimlib-imagex split /Volumes/CCCOMA_X64FRE_EN-US_DV9/sources/install.wim /Volumes/WINDOWS11/sources/install.swm 3000
+RC=$?
+if [ ${RC} -ne 0 ]
+then    
+        echo something went wrong with wimlib-imagex, rc=${RC}
+        echo aborting...
+        exit 1
+fi
+df -hT udf,msdos
+echo copying SWSetup to USB drive
+rsync -ha --progress  ~/Downloads/SWSetup /Volumes/WINDOWS11/
+