Disconnecting drive by pulling power cord?

If i disconnect My Book drive using “Safely remove MyBook Essential USB HDD” in taskbar then can i just pull power plug from wall without first pressing power off button in drive?

My drive is far away from computer but power plug in wall is near so i would like to disconnect it by using taskbar icon then pull the power cord.

Yes! Once you SAFELY remove it from windows you can either pull the usb or the power cord from the wall! Safely remove is the key!