Author Topic: Extremely Slow USB File Transfer Rates  (Read 130 times)

Offline Music_Lover

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Extremely Slow USB File Transfer Rates
« on: February 13, 2018, 10:44:55 PM »
Has anyone experienced painfully slow file transfer rates via the USB 3.0 port to a USB 3.0 flash drive?

I'm running Win 10 Pro 64 bit on a Lenovo i7 T470s 7600u with a speedy SSD and all the latest updates. The flash drive is a Sandisk USB 3.0 64GB (I've tried FAT32 and NTFS).

Copying a folder with 1000s of files and about 1.6GB in size is excruciatingly painful. It seems to start off fine for a short while and grinds to a halt at the 14% or 18% mark, going down to 0 kbs for sustained amounts of time at certain points. Strangely enough the same copy to a Samsung external HDD is infinitely faster. Copying from the flash drive back to the SSD is quick. I have experienced this on 2 Win 10 laptops and on 2 USB 3.0 flash drives, the other being a Kingston 16GB. I've tried most of the fixes from the net but nothing seems to work.
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Offline ALF

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Re: Extremely Slow USB File Transfer Rates
« Reply #1 on: February 14, 2018, 12:26:23 PM »
most of the time if you copy a lot of small files verses bigger file sizes but the total is the same, then the smaller files will take a lot longer due to the file system needs to make entries in the MFT for each little file as it copies the files and that is normally the reason.
"the fostex thang".....

Offline GoodEnoughGear

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Re: Extremely Slow USB File Transfer Rates
« Reply #2 on: February 14, 2018, 12:32:06 PM »
Try suspending your Antvirus if you have one enabled. Especially lots of smaller files can bog down a real-time scanner.

Offline Music_Lover

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Re: Extremely Slow USB File Transfer Rates
« Reply #3 on: February 14, 2018, 03:25:43 PM »
most of the time if you copy a lot of small files verses bigger file sizes but the total is the same, then the smaller files will take a lot longer due to the file system needs to make entries in the MFT for each little file as it copies the files and that is normally the reason.

Try suspending your Antvirus if you have one enabled. Especially lots of smaller files can bog down a real-time scanner.

I'd be inclined to agree with both of you had it not been for the fact that copying to an external HDD attached to the same USB 3.0 port is much much faster with no long pauses of 0 kbs.

Thanks for the input.
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Offline 2wice

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Re: Extremely Slow USB File Transfer Rates
« Reply #4 on: February 14, 2018, 04:36:56 PM »
I'm getting the same nonsense on Windows 10. Used to be much faster on W7.
I suspect it might have something to do with the baked in OS generic driver that reports as updated from the manufacturers drivers.

I'll try something and report back.