1.    31 Jan 2017 #1
    Join Date : Jan 2017
    Posts : 1
    Windows 10 Home x64 bit

    Copy Files from Hard Drive to SD Card - Painfully Slow Transfer


    I am in the process of transferring files from my laptop's hard drive to a 256 GB SD card in the laptop's card reader slot. The transfer started quickly but then it slowed down drastically and has stayed down since. I've looked at some similar posts and tried a few of the fixes that worked for others but none of them have worked for me and I'm still transferring at an incredibly slow pace.

    I should note that I'm transferring music files from my computer to the SD card. I have about 50 GB that I would like to put on the card but it would take me a week at the rate it's going now.

    Anyone have any suggestions?

    THANKS!
      My ComputerSystem Spec
  2.    01 Feb 2017 #2
    Join Date : Jun 2014
    Posts : 556
    Microsoft Windows 10 Pro 64-bit

    SD cards are usually always painfully slow nothing you can do about it unless you spend about 10 times the price and get the faster ones.

    From what I remember the fastest I have gotten is around 8 MB/s on the cheaper type, I have never used the more expensive ones.

    Here are the speed class marks.
    Note: You probably have a class 10Click image for larger version. 

Name:	Class 10.png 
Views:	60 
Size:	4.2 KB 
ID:	119343

    Click image for larger version. 

Name:	Speed mark.png 
Views:	61 
Size:	58.8 KB 
ID:	119342

    Click image for larger version. 

Name:	USB class.png 
Views:	8 
Size:	45.0 KB 
ID:	119341
      My ComputerSystem Spec
  3.    01 Feb 2017 #3
    Join Date : Nov 2016
    Posts : 472
    Windows 10

    I have SD cards labelled as Class 10 U-I 45 MB/s, under testing with small files I get a writing speed of 18 MB/s. Thus meeting the min spec of such cards.
    I won't buy anything slower than that, or from dubious suppliers.

    Also worth checking cheap Cards for capacity fakes, I use H2testw 1.4

    For your amount of data on my Cards it would take roughly ~60 min to write.
      My ComputerSystem Spec
  4.    05 Aug 2017 #4
    Join Date : Aug 2017
    Posts : 1
    Windows 10 64 bit

    I have the same problem when transferring music from my C: SSD drive to the memory card slot in my laptop. Unfortunately, the memory card slot only runs at USB 2.0 speed. I resolved the problem by connecting the SDHC card to the laptop in a USB 3.0 to SDHC adapter, through the USB 3.0 connector. BINGO! The writes to the memory card increased from a few hundred KB per second to 8-10 MB per second. I even found a bargain on the adapter on Amazon here: https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1

    Happy copying!
      My ComputerSystem Spec
  5.    4 Weeks Ago #5
    Join Date : Nov 2017
    Posts : 1
    Windows 10

    SD writes at 4-5 KB/sec


    OK, but all this talk of the speed of SD writes doesn't address when the speed is 4-5 KB/sec. I could live with 1 or 2 MB/sec. I have two Dell laptops running Win10 with all drivers updated and that is the speed of SD writes I'm getting on both of them with their SD slots. Both are using Class 10 SD cards. I can boot to Linux on a flash drive and get those MB/sec transfer rates. So what is Win10 getting wrong here?
      My ComputerSystem Spec
  6.    4 Weeks Ago #6
    Join Date : Dec 2016
    Posts : 171
    Win 10 rs1 - build 14393.1944

    Try to shut down your AV (If running Defender, then also shut down Smart screen) ! When transfer files to/from USB/SD-cards
    AV's are often the cause of slow down!

    You can also try a very fast 3. party copy app. - : http://codesector.com/teracopy
    Last edited by Gordon7; 4 Weeks Ago at 17:46.
      My ComputerSystem Spec

 


Similar Threads
Thread Forum
Can you copy program files over to an external hard drive?
Can you copy program files over to an external hard drive? And copy them back onto your hard drive after installing Windows 10 pro? Or do you have to install all the programs again? If so is there any software that would do it for you?
Software and Apps
Hard drive is failing, is there a way to copy Windows 10 OS?
I just checked that my hard drive is failing. Fortunately, I can still use it at this moment and backed up everything, but there's one thing I want to back up which I don't know how to. If I were to buy a new hard drive, is there a way I could use...
Drivers and Hardware
Copy images files from old hard drive to another
I found an old hard drive which I want to format, not before I transfer all the photos there, It's just that it's so old I wanted to know if there's a faster way than to search for them. Maybe there's a way to find all images files (jpeg, png) and...
General Support
Solved Cannot transfer files from old hard drive to new Win 10 laptop
My Win 8.1 HP laptop failed to boot after a recent win 8.1 update and I have purchased a new ASUS x556u running Win 10. I have removed my old hard drive placed it in a Dynamode USB3-HD2.5S-BN enclosure and attached it to my new laptop. The Asus...
General Support
transfer hard drive
My old computer was a windows 8 that was upgraded to windows 10. I just ordered a new i5 6600 which comes with windows 10, a 250G SSD and 1 TB hard drive.. My old hard drive appears to be a Seagate Barracuda 1TB SATA which seems to be the same as...
General Support
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 17:53.
Find Us
Twitter Facebook Google+ Ten Forums iOS App Ten Forums Android App



Windows 10 Forums