How to block terminal server c: drive?

How can I edit the GPO to block Windows 2008 R2 Terminal Server Users access to C: drive?
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355LT1Author Commented:
But how would the administrator and dba see the local drives?
You would allocate different GPO objects for different users. Administrators and DBAs would use one GPO where the drive is restricted, while other users would have the GPO discussed above with the restriction in effect.
355LT1Author Commented:
Local GPO has this hide drive option , OU GPO does not have the option to hide local drive, so my question is in limbo, any suggestions?
Create a new OU for terminal server users, setup a GPO to restrict local drive access.

The setting should be as:
User Configuration - Administrative templates - Windows components
- Windows Explorer
"Hide these specified drives in My Computer"

Make sure to use loopback processing of the GPO with the Replace
option, otherwise you will be hiding the local C: drive on
workstations as well.

260370 - How to Apply Group Policy Objects to Terminal Services

231287 - Loopback Processing of Group Policy 

Once done move the terminal users into the new OU which has the GPO applied (Not adding the admins)

Should be good from there.

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