Article ID : 00122594 / Last Modified : 07/29/2015

How to access safe mode when you cannot access the operating system.

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The Windows® 10 operating system is designed to primarily access Safe Mode from within the operating system . If the operating system will not start and you want to access Safe Mode to help determine why and to perform troubleshooting, follow these steps:

  1. Press the Power button until the computer is completely off.
  2. With the computer turned completely off, press and hold the Assist button until the black VAIO® screen appears.

    NOTE: The location of the Assist button will be different depending on the computer model. Refer to the operating instructions supplied with the computer for the exact location of the Assist button on your model. Manuals are posted on your model support page.

  3. At the VAIO Care (Rescue Mode) screen, click to select the Start troubleshooting option.
  4. At the Choose the language screen, click to select the desired language.
  5. At the Choose your keyboard layout screen, click to select the proper keyboard layout.
  6. At the Choose an option screen, click the Troubleshoot option.
  7. At the Troubleshoot screen, click Advanced options.
  8. In the Advanced options screen, click Command Prompt.
  9. In the Command Prompt window, type bcdedit /set {default} bootmenupolicy legacy and then press the Enter key.
  10. Click the X in the upper-right corner to close the Command Prompt window.
  11. At the Choose an option screen, click the Turn off your PC option.
  12. Press the F8 key repeatedly while pressing the Power button to turn the computer on.
  13. In the Automatic Repair screen, click the Advanced Options button.
  14. In the Choose an option screen, click Troubleshoot, then click Advanced Options.
  15. In the Advanced options screen, click Startup Settings, then click the Restart button.
  16. In the Advanced Boot Options screen, use the arrow keys to highlight Safe Mode and then press the Enter key.

The computer will now boot into safe mode.