There are no "zip" files involved.
To boot from CD, you need the ISO image
. This must be opened with CD burning software such as Nero which will then create the CD. If Nero or similar isn't available, then use free software such as ImgBurn
Once the CD is created, enter the BIOS and set the system to boot from CD first, save it and reboot with the CD in the drive.
If it boots from the CD successfully, reboot with the CD inserted and the suspect hard drive connected and continue as in the post above.
To boot from a USB pen, you'll need the ISO from the link above and the USB creation tool
. However, booting from a USB device to scan a USB device may cause confusion at best or instability at worst.