Problem in reaching the full speed for data transfer

hi , today i tried using my WD-My passport for the first time with my sony lap top to transfer all the data, but i noticed the transfer speed is not reaching more than 25 mb/s.

can any one suggest what should i do

Try testing the drive with Data Lifeguard Diagnostics.

How to test a drive for problems using Data Lifeguard Diagnostics for Windows

http://wdc.custhelp.com/app/answers/detail/a_id/940

Hello,

Are you connecting the drive on a USB 2.0 or USB 3.0? If is a 3.0, make sure that you update the USB Drivers.

That’s a typical speed for USB 2 drives. A lot of things affect the transfer speed. The speed of the drive being copied from, AV and security software etc.

Joe

Here’s what I get on a 1TB MyPassport Ultra, system at idle–more or less ideal circumstances with a synthetic benchmark. Real file copies could vary considerably.

Left capture is USB 3. Right is USB 2.

I agree with Joe and Help4All if you are on a USB 3 connection and getting numbers like that. It took me a lot of work to get USB 3 working correctly. Check your drivers.