okey this is a simple registry to protect your USB Port on your PC from an unauthorized user. 1. open notepad and copy the data registry below. Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\StorageDevicePolicies] "WriteProtect"=dword:00000001 2. paste it into notepad and save it to WHATEVER YOUR FILENAME.reg (using .reg extension). 3. after that double clicking on it and click the "yes" choice to import it to the regedit. 4. finally do the reboot proccess to complete it. after reboot try to stick in your USB and try to copy some of files from your PC to your USB......you'll see the result.:idea::idea::idea: to unprotect it, you could use this one : Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\StorageDevicePolicies] "WriteProtect"=dword:00000000 we're using the same proccess as above and reboot your PC.....VOILA!!