Flash drives File transfer speed drops to 0 regularly

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  1. Posts : 8
    Windows 10
       #1

    Flash drives File transfer speed drops to 0 regularly


    Hi everyone, I have recently realized my laptop MSI P65 8RF is having a weird behaviour when transfering files or deleting files to/from my flash drives (Kingston Datatraveler Ultimate 3.0 G3 128 GB and Kingston Datatraveler Rubber 3.0 32 gb) it happens that it reaches top speed, around 100 mb/s and then it goes all the way down to 0 mb/s (leds in flash drives stop blinking) and then speeds goes back up again to 100 mb/s (flash drive blinking again). This will happen regularly going up and down, up and down. It happens in both flash drives. Also, I have tried these flash drives in another Windows 10 computer and they work just fine. Data apparently is fine, no data corruption. Another test I did on my laptop it was with USB hard drive, on the same USB port, curiosly, this one work just fine, so apparently it has to do just with the flash drives. Has anyone experienced anything similar? Any idea how address this issue? Thanks.
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  2. pepanee's Avatar
    Posts : 1,388
    Windows 10 Professional
       #2

    Hello and welcome to Ten Forums.

    My first thought in my head was to reinstall your USB drivers on your laptop. But before that check out the tips on this site:
    https://windows101tricks.com/increas...ransfer-speed/

    Try all the methods there (make sure not to format any important data that you have on your USB devices. Make a backup of the files you have on there).

    Setting the USB for Better Performance may make it better too. See if this could help out?
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  3. Posts : 8
    Windows 10
    Thread Starter
       #3

    Thanks for your responde, my thought is the same, to reinstall the USB drivers. However this is a laptop and MSI does not provide just an installer for USB drivers, how can I do it? Can Windows take care of it?
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  4. storageman's Avatar
    Posts : 907
    Windows 10 Pro 1909 18363.836
       #4

    Use Device Manager for the USB Controllers to either update the drivers or delete the controllers which will require a re-boot where the controller will get installed again along with the current drivers.
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  5. Posts : 270
    Windows 10
       #5

    In my experience, this is "normal". I think it depends en the size of the files that are being transferred, the previous state of the UFD [written or not written], the operation of the UFD controller, and possible other factors. Also, external USB HDD disks and UFDs are completely different animals.
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  6. Posts : 8
    Windows 10
    Thread Starter
       #6

    I tried reinstalling the USB controller drivers, but it didn't work, behavior is the same.

    - - - Updated - - -

    Anibor said:
    In my experience, this is "normal". I think it depends en the size of the files that are being transferred, the previous state of the UFD [written or not written], the operation of the UFD controller, and possible other factors. Also, external USB HDD disks and UFDs are completely different animals.
    thing is, just happens on my laptop, I have tried the same flash drivers in two other computers and in those, they don't present this behaviour, just on my laptop. So I guess there is something unusual with its Windows 10.
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  7. Posts : 1,635
    Windows 10
       #7

    It is normal behaviour if you are just using the File Explorer to transfer files, and they are of mixed sizes. large files are a lot faster than a load of small ones.

    You can do an experiment yourself, ZIP the files in to one ZIP file and then use the File Explorer to transfer the one large file.
    It will do it a lot faster.

    Flash drives do not have a large buffer like a USB HDD drive. You can use write caching on the flash drives which essentially simulates that, but there are dangers in doing that should you just pull out the drive whilst cached data is still being written to the drive.
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  8. f14tomcat's Avatar
    Posts : 47,401
    Triple boot - Win 10 Pro, Win 10 Pro Insider (2) - (and a sprinkling of VMs)
       #8

    I would not use Windows Write Caching on a flash drive, external USB drive, yes, but not a flash/thumb drive. If you do, you may experience something akin to what you are seeing. The controller on the flash drive simply cannot keep up with the Windows caching, and you end up playing hurry-up-and-wait. Leave it as Quick Removal, and it will use direct i/o as fast as the flash controller can handle it.

    Edit: The properties for the drive letter, i.e. the Quick/Removal/Cache thumb when inserted, is stored on each PC. May be different on the 3 you are using.
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  9. Posts : 8
    Windows 10
    Thread Starter
       #9

    where can I check if there are any differences on the USB behaviour among the different computers? What options should I check? It really feels there is something strange going on, I had never before seen this behaviour...
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  10. storageman's Avatar
    Posts : 907
    Windows 10 Pro 1909 18363.836
       #10

    Symbionte said:
    where can I check if there are any differences on the USB behaviour among the different computers? What options should I check? It really feels there is something strange going on, I had never before seen this behaviour...
    Plug in the USB stick -> on the drive address click "Properties"-> Move to the "Hardware Tab"-> Highight the USB Stick-> Select "Properties" -> Select "Change Settings" -> Select "Policies Tab". Make sure the policy setting is "Quick Removal".
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