1. Set Screen saver to None.
2. Set Volume control to Mute.
3. Set long battery life wallpaper in VAIO Control Center.
4. Switch off the Wireless LAN switch.
5. Turn off the Windows automatic updates.
6. Complete the initial settings of McAfee Security Center.
7. Close all opened window.
8. Set the following in VAIO Control Center:
   - Display
       - Automatic Brightness Settings
         Adjust Brightness Automatically -> disable
   - Power Management
       - Power Options
         Automatically enter Hibernate mode when battery is low -> disable
   - Security
       - Hard Disk Drive Protection Settings
         Activate hard disk drive protection -> disable
9. Set the following in Intel Graphics and Media Control Panel:
   - Right click on desktop (Intel Graphics model only) -> Power -> Power Feature
       - Graphics Power Plan Settings -> On Battery
       - Display Power Saving Technology -> disable

Common settings in Control Panel -> Power Options
  - Power Plan
    Select Power saver
    Go to Change plan settings -> Change advanced power settings:

    - Advanced settings tab
      1. Sleep afer -> [0]
      2. Hibernate after -> [0]
      3. Dim display afetr -> [0]
      4. Turn off display after -> [0]
      5. Low battery notification -> [0]
    - VAIO Power Management tab
      1. CD/DVD/BD drive -> Running on battery -> Auto off

JEITA Measuring Method a:
Display Brightness
    Change the brightness level to 13% - Control Panel -> Power Options -> Change plan settings -> Change advanced power settings -> Display Brightness