Error messages are important here, so what happens when you try?
If all else fails, then shut down the computer and disconnect the USB drive when the system is powered down.
I cannot SAFELY REMOVE HARDWARE (an LG external hard drive).
I have tried using:
? Win XP?s Safely Remove Hardware feature.
? ?USB Safely Remove v4.2.5? (a third party program, from www.safelyremove.com).
I am using:
? Win XP SP3 (fully updated)
? An LG 320-GB 2.5? External HDD