Check the AC Adapter:

• Ensure that your AC adapter is free from any defects.
• Verify that the genuine Sony AC adapter/battery pack is being used.
• Look for the following signs:
  • The LED on the adapter is lit.
  • The adapter gets warm when connected for about 10 minutes.

Inspect the Fan:

• Make sure the fan is rotating properly from the exhaust.
• Overheating can cause sudden shutdows.

Boot into Safe Mode:

• Reboot your VAIO laptop and press the F8 function key once the VAIO logo appears.
• On the Advanced Boot Options screen, select Safe Mode using the arrow keys and press Enter.
• Safe Mode helps diagnose software-related issues.

Run Windows System Restore:

• Reboot your VAIO laptop and press the F8 function key again.
• In the Advanced Boot Options screen, choose Repair Your Computer and press Enter.
• Select an account with Administrator rights and provide the appropriate password.
• Choose one of the following options:
  • Startup Repair: Fixes issues preventing the OS from starting.
  • System Restore: Reverts to a previous working configuration.
  • Windows Complete PC Restore: Restores your entire system from a backup.
  • Windows Memory Diagnostic Tool: Checks for memory hardware errors.
  • Command Prompt: For advanced troubleshooting.
  • VAIO Recovery Center: Launches the recovery application.

Update BIOS:

• Install any available BIOS updates via VAIO Update or VAIO Care.
  • Using VAIO Update: Double-click the VAIO Update icon in the Windows desktop notification area and follow the instructions.
  • Using VAIO Care: Press the ASSIST button (or find VAIO Care in the Start menu) and access VAIO Software > VAIO Update.

Run a Full Antivirus Scan:

• Use your installed security or antivirus software.
• Update it with the latest definitions.
• Perform a thorough system scan.