Microsoft Releases hotfix to Increase USB Storage Device Maximum Transfer Size

Here is something of interest for all Windows 7 users. If you cursing your USB storage device such as flash drives and USB pen drives for slow data transfer speed then you might need to think again as this could be because of the default settings of Windows 7. Yes, today Microsoft has revealed that default configuration of Windows 7 might constraint maximum transfer speed that you can achieve on USB storage device.

In order to help the users to boost data transfer speed of USB storage devices Microsoft has released an update, kb2581464. The update is meant to add new feature that enables you to update the maximum transfer size of USB storage devices in Windows 7 or in Windows Server 2008 R2. After you install this update, you can increase the maximum transfer size from 64 kilobytes (KB) to 2 megabytes (MB) in the Usbstor.sys driver.

Once you have installed kb2581464 update you need to follow below steps to increase transfer speed,

1. Click on start menu or press Windows + r keyboard key& enter regedit and start registry editor

2. Now navigate for following registry path


(VVVV represents device descriptor idVendor in hexadecimal. PPPP represents device descriptor idProduct in hexadecimal.)

3. Click Edit, point to New, and then click DWORDValue.

4. Type MaximumTransferLength, and then press Enter.

5. Click Edit, and then click Modify.

6. In the Value data box, type a value to specify the maximum transfer size between 65535 (64KB) and 2097120 (2MB)

The hotfix is compatible with Windows 7, Sp1 & Windows 2008 R2 (32 as well as 64 bit operating system).

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Download KB2581464 to increase USB Storage device transfer.



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