Your built-in storage device contains the recovery area where the data for system recovery is stored. If your VAIO computer includes a solid state drive (SSD), you might want to minimize the recovery area by removing such data to free up disk space on the C: drive (or the last drive in your drive list, for example D: drive).
You need Recovery Media to remove the data for system recovery or to recover the computer after you remove the data.
Note that removing recovery content makes it impossible to use the refresh function.
See Creating Recovery Media for more information on how to create Recovery Media.
Follow the on-screen instructions until the Choose an option screen appears.
Follow the on-screen instructions until the VAIO Care (Rescue Mode) : Recover or maintain your system screen appears.