The portable player is not recognized by the Windows Media Player, Content Transfer or Media Go software.

IMPORTANT: This article applies only to specific products and/or operating systems. Check the Applicable Products and Categories section of this article before starting these steps.

Unable to transfer music files with the Windows Media Player or Media Go software.

IMPORTANT:

• If the New Hardware Wizard appears and is prompting for a location of the driver, point to the following directory: C:/WINDOWS/INF.
• To function properly, your Walkman player must be recognized by the computer as a Media Transfer Protocol (MTP) device. If the portable player was connected to the computer and recognized as a Mass Storage Class (MSC) device it will not function properly. In that case, a different procedure is available  to correct this issue.
• For some models, when you use the portable player for the first time, if you have not used it for a long time, or the battery is depleted, it may take up to 5 minutes for it to be recognized or start charging. On models with a display, the display will remain blank. If it the portable player is not recognized or does not begin to charge after waiting 5 minutes, reset the player by pressing the reset button.

NOTE: If this is not the first time using your player and it was working properly at one time with no major changes performed (such as restoring the operating system or replacing a hard drive), follow the procedure below:

1. Connect the portable player to the computer using the supplied USB cable.

   IMPORTANT NWZ-W252 NOTE: The Walkman player model NWZ-W252 uses a unique USB cable and will not work properly if used with any other USB cable available on the market including those supplied with similar Sony products with USB connections. You must use the cable that was included with this model.

2. Disconnect the USB cable from the portable player and then reconnect.
3. Check the connection status again.

   NOTE: For the NWZ-W262 and W263: The OPR lamp will light red, indicating that battery is starting to charge, even if the connection was not made properly. In this case, disconnect and reconnect the player to your computer.

4. Set the portable player to USB Connection Mode.

   NOTE: This setting is only available on the NWZ X series and some NWZ E series Walkman players.

5. (Skip this step if your player is not recognized at all by any software). Check for available space  on the player using Windows Media Player, Media Go, or My Computer.
6. If none of these options corrects the situation you can try a reset on your Walkman player. A soft reset procedure will close all open or running applications and services, and then restart the Walkman player. No data is erased and no applications are removed.
7. Locate the reset slot.
8. Take a small paperclip, insert the paperclip into the slot and press gently. You will see the Walkman player restart.
9. Once the Walkman player restarts, plug it back into the computer.
10. Check the connection status again.
11. If the Walkman player is still not recognized, restart the computer.
12. Check the connection status again.
13. Check that the USB cable is firmly connected to both the computer and the player.
14. Check the connection status again.
15. If the player is connected to a USB hub, disconnect it and connect it directly to the computer with a dedicated USB cable.
16. Check the connection status again.
17. If the player is still not recognized by the computer, disconnect all devices connected to the computer with a USB connection and restart the computer.
18. After the computer restarts, connect only the Walkman player and test the connection again.
19. If the player is still not recognized by the computer, try a different USB port.
20. Check the connection status again.
21. Under the Common settings menu of the player, format the player using the built-in Format utility.
22. Check the connection status again.
23. Verify the current Operating System. If it is an upgraded operating system, contact the computer manufacturer for updated drivers for their upgraded operating system.
24. If you did not have the latest service pack, test the connection status again after it has been installed.
25. If you are still unable to transfer music to your player and have not yet uninstalled and reinstalled the driver follow the procedure to confirm that the player is recognized by the computer as an MTP device .