Where is the /StorageDevicePolicies/ file

Hello,
It seems to me that it is located in regedit.
Press windows+R and in the window type regedit, if it asks for access, you accept.
You are now in the registry editor.
HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Control

Then follow this video.
http://www.youtube.com/watch?v=FMiSVxJTwII

StorageDevicePolicies is actually a folder that you create yourself inside.