Increase the maximum USB data transfer size in Windows 7

Speed Up My PC

This post will help those Windows 7 and Windows Server 2008 R2 users who are looking for a solution to increase their read, write, copy move, data transfer speeds while carrying out the operation from their Windows computer to a USB and vice versa. Microsoft has released an update that will now allow you to increase maximum transfer size of USB storage devices in Windows 7 and Windows Server 2008 R2.

usb drive Increase the maximum USB data transfer size in Windows 7

Windows 7, by default has set the maximum USB transfer size for USB storage devices at 64 KB. This default setting is configured in the USB port driver (Usbport.sys) in Windows 7 and Windows Server 2008 R2.

If you want to increase the maximum USB transfer size to as much as 2 megabytes (MB), you can apply this new Hotfix which has been released by Microsoft.

For some USB storage devices, performance can be improved when you increase the maximum USB transfer size beyond the default setting of 64 KB. This update is supported when the hardware vendor provides a device information file (.inf) to set this value for USB storage devices.

You may have to restart the PC after installing the update available at KB2581464.

After you have installed this update, to increase the maximum transfer size of USB storage devices, open the Registry Editor and navigate to the following subkey:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\usbstor\VVVVPPPP

Click Edit > New > DWORDValue. Type MaximumTransferLength and hit Enter. Next, click Edit > Modify.

In the Value data box, type any value between 64 KB and2 MB range. For example, to increase it to 2 MB, select Decimal and type 2097120. Exit Registry Editor.

Let us know if this works for you.

Posted by on , in Category Windows with Tags ,
Anand aka HappyAndyK is an end-user Windows enthusiast, a Microsoft MVP in Windows Desktop Experience since 2007, and the Admin of TheWindowsClub.com, TheGeeksClub.com & WinVistaClub.com. Creating a System Restore Point before trying out a new software or a tweak is always recommended.

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  • Daniel

    Ok, all my USB flash drives use the default driver, does that mean I won’t get better speed with this update installed?

  • Natz

    Doesn’t work on windows 7 64 bit.:(

  • Juan Figueroa

    It don’t work in 64 versions or the fix need a fix for itself because the HKLMSYSTEMCurrentControlSetControlusbstorVVVVPPPP is not appearing the registry, the VVVVPPPP part.

  • japp

    Why? What problem o you get? I’ve requested the fix for X64

  • japp

    Thanks for this article. Hope I’ll be getting more speed.

  • japp

    A username and password is required to download this fix :(

  • Asl4u

    download link requires user name and password – unable to access the file

  • http://www.thewindowsclub.com Anand Khanse

    You have to give your mail ID in the space provided and I understand that they will send you a mail with a download link and the password.

  • Alex Bad

    I too have not found this key – VVVVPPPP