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Hi all,
I know that this topic has appeared once or twice in these forums but there haven't been any resolutions and they've been quiet lately so I started a new one.
Recently, I migrated from Windows XP to 7 and found this problem. When I try to copy a file (a 1.2GB video) to a usb flash drive that I know is usb 2.0 hi-speed (copying files to it in xp were really fast) it takes over 2 minutes. 7 reports that it is copying at 3-4 MB/sec. When I copy from the flash drive to my computer it copies at about 9-10MB/sec. I've also tried plugging it into the rear ports but that doesn't change the transfer speed at all. I know it isn't something related to the flash stick itself because transferring files to it in xp were a lot faster.
Some random information: Transferring files from one hard drive to another averages at about 60MB/sec (both of the hard drives are SATA II drives). I'm not sure what speed it should be but it doesn't feel drastically slower than on my xp machine. Windows 7 and my device drivers are all up-to-date.
System specs:
Dell optiplex GX620
Pentium 4 3.2GHz
2GB Ram
Windows 7 Professional 32-bit
AVG 9 free edition anti-virus
My setup is almost identical to how it was on my windows xp machine except I have less programs installed so there isn't something new that could have caused problems.
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Hi,
I have the same issue, my transfer speeds start at around 50MB/sec but then drop to 2/3MB Sec when transferring large files to USB sticks.
I've seen this issue on various forums and no response or update or reason other than cop out answers like above.
Same thing on a hp probook 5310m, win7 pro 32 bit. 500 KB/s max. Working fine on my dell vostro 1710 with win7 pro x64 and ubuntu 10.10 x64
Cody,
Have you or anyone in your community figured out why USB and hard drive transfer rates are slow in 7 compared to XP. My Dell Studio 1735 has a 4 GB ram and 2.1GHz Dual core. With two hard drive bays, I installed XP pro on one and 7 Ultimate x64 on the other.
The 7 had rates ranging from 466Kb /s to 8 Mb /s (up to 25 Mb /s when transferring to 2nd hard drive).
The XP ranged from 5Mb /s to 20+Mb /s (up to 40Mb /s when transferring to 2nd hard drive).
After searching online, I see this is a common issue with Vista / 7.
Any reason why this is? Or suggestions to increase the USB transfer?
Hi Cody,
Thanks for the reply. Unfortunately I can't do any tests of my own on my XP machine because 7 has replaced it but it does feel slower. Perhaps it's just my imagination. I noticed that if I copied that 1 GB file to the flash drive that if I cancel it the computer locks up and will only respond if I pull out the flash drive (can't even disconnect it properly. I have to just pull it out). Is this a bug or just something related to my out-dated chipset drivers?
I also tried copying the file in safe mode and the speed was the same.
