Epson ActionNote - Manual (Page 61)

Removing and Insetting the Hard Disk
You can easily remove and replace the hard disk drive in your
computer. This is useful for sharing the computer among
several people, keeping data confidential, or managing very
large programs.
To remove the hard disk drive, slide it to the left as far as it will
go. (You’ll feel it ease away from the case.)
Then pull the drive straight out of the computer.
3-18 Using Your Computer