Compaq Recovery Partition
From Free Knowledge Base- The DUCK Project: information for everyone
Everything from the OS disk is located on a hard drive recovery partition. With HP or Compaq you access recovery on restart by hitting the F10 key. You can recover applications, drivers, and the operating system to their factory shipped condition. You will need to reinstall and reconfigure any application that you installed, but it will not delete data files in its normal default mode.