- Start > Run > type ?re...

I had the same problem but got the solution here

- Start > Run > type ‘regedit’ (without the speachmarks) > Enter - Single-click on ‘My Computer’ > File > Export > save it to the Desktop (Always best to have a backup!!) - Go to the following:
My ComputerHKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlStorageDeviceP olicies
*There seems to be some spaces here in 'StorageDevicePolicies' in the text above, there shouldn't be, OK*
- Double click on the string ‘WriteProtect’ and change the ‘Value Data’ box to ‘0’
- Then: File > Export > save somewhere useful as something like ‘StorageDevicePolicies001.reg’
- You also need to do this for the strings in any folders called ‘ControlSet***’ (* = any Digit, i.e. 001, 002) – for example: Everything is the same, just change ‘CurrentControlSet’ to ‘ControlSet***’
My ComputerHKEY_LOCAL_MACHINESYSTEMControlSet001ControlStorageDevicePolic ies
*There seems to be some spaces here in 'StorageDevicePolicies' in the text above, there shouldn't be, OK*
- Save these to the same place as before as ‘StorageDevicePolicies00*’

then go to your disk and delete anything you dont want on your disk.