Recently my desktop always giving me much problems, so I have a thought of use back the existing HDD to boot from my laptop instead. I had checked my laptop's BIOS settings and it allows me to set booting from USB HDD, so I bought a HDD casing with USB cable connected to my laptop and start booting from the USB HDD. Well, it start booting from the USB HDD, but unfortunately, it can't goes into windows (My is XP SP2), it always leads me to the Advanced Boot Options menu, even I tried on "Safe Mode" booting still will leads me to this menu. Why? Did anyone have the same experience and like to share how you finally solved this problem? Thanks