1. make a backup of all the data on your pendrive
  2. copy PixieLive and boot directories on your pendrive
  3. make sure to have a backup of all you pendrive data!!!

    • On windows open the command prompt as ADMINISTRATOR (it's in Accessories) then
      X:
      (where X is your pendrive letter)
      cd boot
      bootinst.bat

      and follow the instruction

    • On Linux open the terminal (i.e. xterm, konsole), then mount your pendrive, then
      cd /PATHTOYOURPENDRIVE/boot
      sudo ./bootinst.sh
      (if you have a sudo equipped distribution)
      OR
      su
      (you will be asked for root [admin] password)
      ./bootinst.sh
      (as root)
      and follow the instruction
  4. unmount your drive
  5. reboot
  6. set your BIOS to boot from USB devices
for some unknown reason the windows way doesn't work on my drive, it will be corrupted and i have to format it, that's the reason because i said make sure to have a backup of all you pendrive data!!! if you can, do it from linux, it's safer