If none of these options corrects the situation you can try a reset on your Walkman player.
(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.
NOTE: This setting is only available on the NWZ X series and some NWZ E series Walkman players.
Set the portable player to USB Connection Mode.
In this case, disconnect and reconnect the player to your computer. 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.
Disconnect the USB cable from the portable player and then reconnect.
You must use the cable that was included with this model. 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.
Connect the portable player to the computer using the supplied USB cable.
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: 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. On models with a display, the display will remain blank.
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.
In that case, a different procedure is available to correct this issue. If the portable player was connected to the computer and recognized as a Mass Storage Class (MSC) device it will not function properly.
To function properly, your Walkman® player must be recognized by the computer as a Media Transfer Protocol (MTP) device.
If the New Hardware Wizard appears and is prompting for a location of the driver, point to the following directory: C:/WINDOWS/INF.