How can you run a hard drive from a computer that died?

Doing this requires a second computer. What has to be done is take out the drive from the dead computer. Locate the jumpers at the back of the drive next to the IDE/Sata cable input and power ports. Change the drive to slave. Most stock drives are set up as either cable select or master. Once it has been changed to slave, install the drive into another computer and turn it on. Because it was changed to slave, the OS will not be booted from the salvaged drive. All files should be accessible for recovery now.