Sony SVT1121 How To Use Manual page 164

Typically, you cannot modify or delete data in this area, however, there are commercially
available apps designed for this purpose.
Why do I have to create Recovery Media?
Recovery Media are used to restore your VAIO computer back to its original factory condition. If
Windows does not start and you have deleted the recovery area, you will need the Recovery
Media to perform recovery.
Create the Recovery Media immediately after the computer is ready for use.
Refreshing Your VAIO Computer
If your VAIO computer has become unstable, it is recommended that you use the refresh
function provided by Windows. Refresh the computer by following these steps.
Note
The 64 GB or 128 GB SSD equipped models do not support the refresh function. If you want
to check the capacity of the SSD, press the ASSIST button while your VAIO computer is off
to display the VAIO Care (Rescue Mode) screen, and select Start BIOS setup.
1. Press the ASSIST button while your VAIO computer is off.
The VAIO Care (Rescue Mode) screen appears.
2. Select Start troubleshooting (recovery).
Follow the on-screen instructions until the Choose an option screen appears.
3. Select Troubleshoot and Refresh your PC.
Most user data saved on your built-in storage device, some Windows settings and all apps
downloaded from Windows Store will be retained even after you refresh your VAIO computer.
However, some app settings or files in the specific folders may not be retained.
Confirm the following list for details of which settings are retained, and which data is erased
after you refresh the computer.
Settings retained after you refresh your VAIO computer
The following settings will be retained after you refresh your VAIO computer.
Library settings
User accounts (local, domain, Microsoft account), and group memberships
Domain settings
Windows Update settings
Start screen and lock screen background
Desktop themes
International settings
Wireless network profiles