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Windows 7: Slow USB transfer


27 Aug 2009   #11

Windows 8.1 Pro (x64)
 
 

Should also remember the more you use any flash storage media, it slows down and it slows down on thumb drives really dramatically. Because on flash media, you cannot overwrite existing data, it must first be erased. There is another issue with erasing too... While you can read and write to 4k pages, you can only erase 512k blocks.

But Windows can only transfer files as fast as the medium its talking to will allow as well as the max though put of the connection.


My System SpecsSystem Spec
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28 Aug 2009   #12

Windows 7 Professional x64
 
 

Quote   Quote: Originally Posted by pparks1 View Post
Check this out...might be a correctable problem with the device;
[ Welcome to cowonglobal.com Test Server ]
DUDE! THANKS! my iA7 was 8kb/cluster...I formated my iA7 with 16kb, 32kb & 64kb clusters just to see what would change...test file was a 1.13GB AVI

@64kb I was avg 5.35 MB/sec
@32kb I was avg 5.25 MB/sec
@16kb I was avg 5.15 MB/sec
My System SpecsSystem Spec
26 Jan 2012   #13

Windows 7 Ultimate 64bit SP1
 
 

I have the same problem, sandisk 16gb transfer speeds star at about 16mb/sec the slow to a max of 2.5mb/sec, no matter the file size or type, and I only bought it 6 days ago, so wear is not the prob.
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14 Feb 2012   #14

Windows 7 Ultimate x32
 
 

File transfer also from PC to USB also matters with the number of files it is copying to. The more, the slower. But you can install programs in your PC that will speed up file transfer. There are a lot of programs in the internet.
My System SpecsSystem Spec
16 Feb 2012   #15

Windows 7 Home Premium 64bits
 
 

Do you have Microsoft Security Essentials? i had this problem since last month and fixed it as a temporary measure by excluding the USB drive or flash drive in question (Example G:\) from the real-time scan.
My System SpecsSystem Spec
13 Dec 2012   #16

Windows Home 64Bit
 
 

Yep also changed the cluster size and my through put is flying!

Was 1.5 Mb/s - now running between 20 - 50 Mb/s for a 64bit cluster size.

Remember to change the cluster size when formatting from fresh, or convert the cluster size using something like Acronis Disk Manager.
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 Slow USB transfer




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