All USB Ports running very slow

For some reason, the USB stick I have been using has been going really slow on my computer, about 6-7mb/s. I have tried on all of my usb ports, some of which are 2.0 USB ports, and some are 3.0 USB ports. I have most if not all of the important drivers installed from the site, but they have had no effect on the speed of the USB stick. The weirdest part is that the USB stick runs perfectly fine on my friends weaker computer, it goes about 20-24mb/s, so it's not the USB stick. What can I do to make the speed go faster?

Are there any yellow icons in your Device Manager?

Nope

I checked the bios, and there seems to be no USB 1.1/2.0/3.0 options

Perhaps your A/V (or another watchdog program you have on your computer) is doing an on-demand scan of the files being copied and is slowing down the transfer.

I checked both the bios and the antivirus (i only have Microsoft Security Essentials) and there seemed to be nothing wrong with them. I did manage to increase the speed of the usb by changing it from quick remove mode to maximum performance (something like that) within the properties menu. It could just be the usb stick being bad, considering my external hard drive goes perfectly fine.

So, it's just one USB stick and not USB in general, then? If it's just one USB stick, then I think that pretty much narrows down the issue.