Windows - Hide drives in File Explorer

My administrator mapped some network folders as drives on everyone's PC that I don't have any use for. Getting rid of them is accomplished through the registry:

The registry key

• Open RegEdit, and open the subkey HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer.
• If it doesn't exist yet, add a new DWORD value called NoDrives.
• Put a decimal value in it, as specified below.

The value

Each drive letter has a value double that of the previous letter. So A=1, B=2, C=4 and so on until X=8388608, Y=16777216, Z=33554432. Take the drives you want to hide, add the values of their letters together and that's the value you need to put in the registry.