With the assumption you already have the right internal hard disk drive for Thinkpad T61 and want to changes an old one, here I want to show you the steps.
- There is a screw that you need to unscrew.
- Take off the cover for the internal hdd bay.
- Pull on that black Mylar pull tab on the hdd, to remove it from the drive bay.
- Remove the two rubber railings on both side of the hdd drive (anti shock).
- There four screw that holds the old hdd in the makeshift anti-static caddy (you would need a Phillip screwdriver)
- After the screw is removed, replace the old hdd with the new one you bought.
After you have reinstalled the new hdd in the T61 laptop, the next steps you should do is run the Recovery media discs (3 DVD) from
startup discs and follow the on screen prompts. This should restore the recovery partition, and reinstall all your OS and drivers like
when you first got the laptop. If you have also created a rescue and recovery backup, simply restore T61 laptop to the original condition, by choosing restore.