This can be done by adding a small entry to the Windows registry which acts as a switch that can be enabled to make use of the write protection or disabled to allow write access. Just 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_MACHINESYSTEMCurrentControlSetControl

3. Create a New Key named as StorageDevicePolicies. To do this right-click on Control, and click on New->Key and name it as StorageDevicePolicies.

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

Write-Protect USB Drive



5. 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 WriteProtect (Step-5) from 1 back to 0. Now write access to all the USB devices is re-enabled.



#### USBWriteProtect####

You can use the software usbwriteprotect it is very very simple!