How to enable write protect your usb flash drive

By using write protect feature no one can add/delete the contents from your USB flash drive. Any attempt to copy or download the files onto the USB drive will result in the  error message

 

To enable write protect on a usb which does not have write-protect feature follow these steps.

1. Open the Registry Editor (Open the “Run” dialog box, type regedit and hit “Enter”).

2. Navigate to the following Registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\

3. Now right-click on Control, and click on New>Key 

4.Now rename this new key to  StorageDevicePolicies..

4. Now right-click on StorageDevicePolicies and create a New>DWORD (32-bit) Value 

5 Now rename this value to WriteProtect

6. Double-click on WriteProtect and set the Value data to 1.

Now the right-protection for USB drives is enabled on your computer (no restart required) and thus it would not be possible for anyone or any program to add/delete the contents from your USB flash drive. Any attempt to copy or download the files onto the USB drive will result in the following error message being displayed.
USB-Write Protect Error

To revert and remove the write-protection, all you need to do is just change the value data for write-protect (Step-5) from 1 back to 0. Now write access to all the USB devices is re-enabled.

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