Friday, September 23, 2016

How to increase Maximum File Transfer size of USB in Windows 7

How to increase Maximum File Transfer size of USB in Windows 7


In Windows 7 and Windows 2008 R2, the maximum transfer size of USB is set to 64 KB. It means at one instant, maximum file size to be transferred from Windows 7 Computer to USB Devices is 64 KB. To override that restriction, Microsoft released a hotfix to increase the maximum transfer size from 64 kilobytes (KB) to 2 megabytes (MB) in the Usbstor.sys driver. 

Download Update kb2581464 from official website. Select the Windows version (32 or 64 Bit) and enter email address to request download link on email.

--Click Start, type regedit in the Start Search box, and then press Enter.

--Locate and then click the following registry subkey:

HKEY_LOCAL_MACHINESSYSTEMCurrentControlSetControlusbstor54C00C1

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

--Type MaximumTransferLength, and then press Enter.

--Click Edit, and then click Modify.

--In the Value data box, type a value to specify the maximum transfer size between 64KB and 2MB. For example, you select Decimal and type a value between 65535 (64K) and 2097120 (2M).

--Exit Registry Editor.

Restart the computer and changes are made now! Try connecting USB Pendrive or something and you will notice changes immediately when transferring file.

Go to link Download

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