This procedure is for initializing your PS4™ system and performing a new installation of the system software, such as for when you replace the hard disk drive.

• Be careful when using an update file for reinstallation. All users and all data will be deleted.

The following things are needed to perform the update:

• PlayStation®4 system

• Computer connected to the Internet

• USB storage device, such as a USB* flash drive
  * There must be approximately 1.1 GB of free space. 
  
  

• On the USB storage device, create folders for saving the update file.
  Using a computer, create a folder named "PS4". Inside that folder, create another folder named "UPDATE".
  

• Download the update file, and save it in the "UPDATE" folder you created in step 1.
  Save the file with the file name "PS4UPDATE.PUP".
   Click to start the download.

• Turn off the power of your PS4™ system completely.
  Check that the power indicator is not lit. If the power indicator is lit up in orange, press the power button on the PS4™ system for at least 7 seconds (until the system beeps a second time).

• Connect the USB storage device to your PS4™ system, and then press the power button for at least 7 seconds.
  The PS4™ system starts in safe mode.

• Select [Initialize PS4 (Reinstall System Software)].
  Follow the on-screen instructions to complete the update.

• If your PS4™ system does not recognize the update file, check that the folder names and file name are correct. Enter the folder names and file name in single-byte characters using uppercase letters.