Start working the problem:
CD-R disc is discovered not have important files, like outlook.pst.
The hard drive was placed in a bubble wrap envelope, with no anti-static properties.
The SATA connector is partially broken; someone used hot-glue to hold their connector cable.
Hardware-wise the hard drive works fine.
The file system could be in better shape: many zero-size files with names like, "X~@", but scandisk returns no errors.
Cannot access some folders. Hmm . . .
The operating system is — can you guess? — Windows XP Professional!
Unlock the folders. The procedure is nicely documented at MSKB 810881.
Recover 9.5 Gigabytes of personal data, including a 0.5 GB outlook.pst file.