Increase Maximum File Transfer size of USB in Windows 7 | Hotfix
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.
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- Click Start, type regedit in the Start Search box, and then press Enter.
- Locate and then click the following registry subkey:
- 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.