Chosen Solution

when I insert HDD, it will display no bootable found.

Are you using a new HDD? Many HDD’s from the store are not preformatted and need to have the OS Format it so having the computer say “No bootable found” is a good thing. Just put in the OS CD in your CD drive and boot your computer up and Press F2 or F12 and access your BIOS Settings and set the BOOT Order to Boot to your CDROM First instead of the HDD then SAVE and reboot. Your computer should now run the CD instead of trying to go to the Hard Drive. Then follow the OS CD instructions for the Operating Systems install. Good Luck!