About Vista system set flash and removable hard drive can only read

Q: The unit has a computer in order to avoid the leakage of confidential documents, the leader asked to insert the computer's flash memory, removable hard drive can only read data can not be written. This computer is installed Windows Vista system, how can I set?
A: First use the Administrator account login system, click the Start menu → "Run" enter "regedit" and return to open the Registry Editor, in the left pane click Hkey_local_ Machine\system\currentcontrolset\control\storagedevicepolicies, and then right-click in the right pane space to create a new DWORD named "Writeprotect" ( 32-bit value, and then double-click the value to set its value to "1" (hexadecimal), click OK and exit Registry Editor. If your leader which temporarily allows you to write data to flash and removable hard drives, you can simply set the value of the "Writeprotect" registry to "0".
Tip: If you do not find the "Storagedevicepolicies" registry key, you can right-click the control registry key, create a new "Storagedevicepolicies" registry key, and then follow the above method of creating a " Writeprotect the registry value.