1. Open Start Menu 2. Run, type regedit and press Enter, this will open the registry editor. 3. Navigate to the following path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\StorageDevicePolicies 4. Double click the key WriteProtect in the right pane and set the value to 0 In the Value Data Box and press OK button 5.Exit Registry 6. Restart your computer and re-connect your USB pen drive on your computer.