diff --git a/src/bootsect.sh b/src/bootsect.sh
new file mode 100755
index 0000000..c3ac014
--- /dev/null
+++ b/src/bootsect.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+git clone https://github.com/wrzlbrmft/bootsect
diff --git a/src/iso.sh b/src/iso.sh
index a3063e5..fd2a5af 100755
--- a/src/iso.sh
+++ b/src/iso.sh
@@ -1,13 +1,27 @@
 #!/bin/sh
 
 src/extract_iso.sh
+EXTRACT="win/"
+
+src/bootsect.sh
 
 # add answerfile
-cp data/autounattend.xml win/
+cp data/autounattend.xml ${EXTRACT}
+BOOT_PATCH="bootsect/bootsect.bin"
 
 # install mkisofs
 # recreate iso
-mkisofs --allow-limited-size -r -o win.iso win
+mkisofs \
+    -allow-limited-size \
+    -b ${BOOT_PATCH} \
+    -no-emul-boot \
+    -boot-load-seg 1984 \
+    -boot-load-size 4 \
+    -iso-level 2 \
+    -J -l -D -N -joliet-long -relaxed-filenames \
+    -V "WINSP" \
+    -o winsp.iso \
+    ${EXTRACT}
 
 # clean up iso extract
-sudo rm -rf win
+sudo rm -rf ${EXTRACT}