To disable copying files to USB Flash Drive

1. Open Run command and type "regedit" (without the quotes)

2. Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control

3. Right-click on the blank area of the right pane and create New Key

4. Name the new key as "StorageDevicePolicies" (without the quotes)

5. Under the current folder of the new key, create a new DWORD and name it "WriteProtect" (without the quotes)

6. Edit the value of the new DWORD and make it "1".

7. Logoff user or restart Windows explorer.

8. Test to copy files to your flash drive.