HP Driver Recovery DVD - contains software and drivers already installed, for software reinstallation and repair. Drivers are included for Windows 8.1.Workstations covered: Z1 G2, Z230, Z420, Z620, Z820.DVD Kit 752203-B23 / DVD 752204-B23.This is OEM recovery media that was supplied with a new HP workstation. It contains drivers only - no operating system and no product key, and none is needed.Tested and reads correctly. Includes the original HP paper sleeve.Ships in a box via USPS Media Mail.