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.
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.
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
Settings configured in Windows Welcome
The data in the folders specified below will be erased after you refresh your VAIO computer.
\Windows
\Program Files
\Program Files(x86)
\ProgramData
\Users\(User name)\AppData
Save important data in advance.
Copyright protected data, such as digital broadcast data or music files organized by digital media playback apps may not be available, even if the data is retained in the same location after you refresh your VAIO computer.
Refer to the help file included with the app you are using for instructions.