To start the recovery from the CD/DVD put it into the drive and restart the computer. If the hard drive recovery partition is still intact you will be prompted to run the recovery from the hard drive or the disk. Choose appropriately. When Recovery Manager has loaded click advanced options Choose system recovery If you wish to try and backup any data then choose backup your files first and follow the on screen instructions To run the recovery without backing up your data choose to recover without back up The recovery will launch and restore your system back to it's factory default state