Windows 7: Very slow USB transfer rate on win 7 64 bit

Hello
I'm using Windows 7 for a while and i never noticed the transfer speed of usb bcoz i've never transfer a huge files before. The transfer speed is only between 3-4 Mbps and nothing more. Ubuntu atleast gives me 7-10Mbps. Recently I transfered 400 MB folder and it took 30 - 40 min at the rate of 250kbps. The 400MB folder was my XAMPP folder which contains multiple files.
I got pretty frustrated at this. Please help me find a solution to this . The other day i was late to office bcoz of this , it took 40 min as described above.
please provide some insight to this. I'm expecting at least 15-20 Mbps



Thanks In Advance

What device are you transferring from and to?

Write-Caching - Enable or Disable

Regards....Mike Connor

i'm sorry i was in a hurry.
To a Usb drive. kingston 2Gb

My sys configurations
AMD athlon ll X4 635 2.9Ghz
2GB ram
Win 7 64

Format your USB Drive to NTFS with 8192 bytes of assignation, after the format, go to Device Manager, open hard disks, right-click your USB drive and go to Properties, the 2nd tab to the right (from your left), should say "Directives" (sorry about that, i have a spanish version of Windows 7) and check the "High Performance" module.

That will solve your problem

You should probably try to find the specs for your drive.
I just researched a Kingston Data Traveler 2 Gb USB Drive.......Data transfer rates of up 6MB/sec. read and up to 3MB/sec write.

Try what Punkster and Mike mentioned, but most importantly look for the data transfer specs.
15-20 Mbps may be unrealistic on some drives.

Didn't think about that, P5! you're completely right, but the method of NTFS formatting and High Performance Directive will give the USB a really good improvement, that's how i have all my USB's and they work just fine.. 2GB files and only takes a couple of minutes...

But you'll never get higher speeds than advertised from the manufacturer, you'll only get "close enough" heheh