2TB External Hard Drive Storage USB 3.0 Very Slow Transfer rate..Pleasee Heellpp

Recently, about 2 months ago, I purchase a 2tb wd usb 3.0 external, at first, for about 3 weeks I was transferring at 120 MB/s , now when I am transferring files its transfers at about 46 MB/s, which is a big drop. I transfer about 100 GB of files daily, and this is a painstakingly slow process.Can anyone tell me whats wrong.

The harddrive never fell, no damage… My 2.5 inch Usb 3.0 transfers seemingly fast. I get about 85 MB/s with it, but its the WD That’s the problem.

Here are some additional information:

Operating System is Windows 8 PRO 

Laptop is an Asus A55VD-AH71 with intel core i7 ivybridge, 7200 rpm hdd

Device Manger specifies my 2tb usb 3.0 as ‘WD My Book 1140 USB Device’

I am a well seasoned IT Technician and a Senior Software Developer

Ports are USB 3.0

Harddrive giving problem:WDBACW0020HBK-NESN

So Please if you have to explain in details, and technicalities please do. I just need my harddrive transferring back at roughly 120 MB/s instead of 46 MB/s…

Thanks in Advance

The first thing you should try is testing the drive.

You can use our Data Lifeguard Diagnostics utility.

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