Vista - Slow USB Transfer Rate.

I am a Windows Vista Home Premium SP2 32-bit User with 2.5 GB RAM. It was 1GB (512 + 512) originally, and I upgraded one RAM to 2GB recently at 1.60 GHz, with 120GB Harddisk space.

I am getting very low USB Transfer speeds. I have searched for this problem over the internet, and I haven't got a single solution that works till now. The details are as follows.

USB - Transcend 2.0GB

Transfer rate on XP - 10 gbps
Transfer rate on Vista Home Premium on another computer - 10gbps
Transfer rate on MY COMPUTER - 3 gbps.
Transfer rate of another USB Flash drive on my comp - 3gbps

I have done the following to upgrade the speed to 3gbps.

1. Optimised performance of the USB Drive, by going to Properties and all.
2. Reinstalled my BIOS, as it was somewhere mentioned that it might cause this problem.
3. Reinstalled (several times) my USB Driver.

The problem still persists. What could be the problem? This guy I went to, says it could be a virus. But my Norton, or AVG can't find any virus on my computer. Any suggestions?

ok, i meant mbps, everywhere that i mentioned gbps!! If it were gbps, I wouldn't be having this problem!!

"praharmitra" <guest@xxxxxx-email.com> wrote in message
news:922df915da2021d059f2da0703c89890@xxxxxx-gateway.com...How did you gauge your transfer rates? (I saw your other post of Mb instead
of Gb)

One of the things that may be slowing the rate down is Norton, or any other
real-time virus scanner. Turning it off though would be a bad idea.

SC Tom

Well, in vista, the transfer rates are mentioned. In XP, i calculated the time it took to transfer a 552MB file.