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Type regedit and click OK.

Locate the following registry key: HKEY_LOCAL_MACHINE\ SYSTEM\CurrentControlSet\ Control\ usbstor

Right click the usbstor key, click New – Key. Name the new key as: VVVVPPPP

Click OK to create the key.

Now, click the usbstor folder

On the right pane, right-click the “default” key.
Click Modify…

In the Value data field, type MaximumTransferLength and hit the OK button.

Still on the usbstor folder, on the right pane, right-click any empty space and from the menu select New – DWORD.

Name the new DWORD as MaximumTransferLength and press OK to create the new key.
(qua direi che per chi ha un 64 bit dovrebbe usarne una a 64....... )

Now, double-click the MaximumTransferLength key and assign ita value between 65535 (64KB) and 2097120 (2MB).

Exit regedit and restart your PC for the changes to take effect. Now your USB maximum speed rate should have been changed.

Please note that some computer hardware might not support such has. In fact, as stated on the Microsoft webpage: “For some USB storage devices, performance can be improved if the maximum transfer size is increased from the default 64 KB. This update supports this change when the hardware vendor provides a device information file (INF) to set this value for the USB storage devices.”