Lenovo J SERIES 3000 - Manual (Page 193)

Recovering software
When you install a new hard disk drive, you also need a set of Product Recovery discs. The set of Product
Recovery discs will enable the contents of the hard disk to be restored to the same state as when the
computer was originally shipped from the factory. For more information on recovering factory-installed
software, refer to “Recovering software” in the User Guide.
Chapter 11 . Additional Service Information 187