Enabling Locked Down Removeable Storage for certain users

Good Afternoon,

I have got a client who have locked down their machines to stop users from accessing\copying files to removable storage devices such as CD/DVD-R's, USB Sticks, Floppy Drives basically they have went the whole way and locked down everything.  The good news is this work's and now no one is able to access any removable storage, unfortunately there are a group of user's who require access to save, move, copy documents to and from removable storage.

They have disabled the Removable drives via GPO using the following article:

http://www.petri.co.il/disable_usb_disks_with_gpo.htm

They have created two GPO's one for Disabling the Removable Storage and one for Enabling Removable Storage. I have ensured that the GPO for Enabling Removable Storage is applied to the machine after the one to Disable the storage.

Each GPO is set to only apply to a certain group either "Disable Removable Storage" which most users are a member of or "Enable Removable Storage" which only has the privileged users.

I have doubled checked the Enable Removable Devices GPO to ensure that the services have been started for each of the devices that should be accessed.

On each machined the Removable Storage Driver is stopped in services and I can't start it as I keep getting a "Code 5 unable to start this service because you do not have permissions" error.

If I run a gpresult on each machine I can see the user has had the Enable Removable Storage Policy applied. But they can't access anything.

Users are not members of any special groups on the workstation just "users"

Can someone please help me with this?

Many thanks in advance

Stan Ferguson-Smith
LVL 1
gwyddonAsked:
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jillmjonesCommented:
Without seeing the full RSoP it would be hard to determine since other GPO setting could be preventing this. Most porbably it si because the user account logged in does not have permission on the service. You can add this permission to your overwriting GPO as well.
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gwyddonAuthor Commented:
I will get a RSoP from one of the machines and get it uploaded ASAP for you.
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btdownloads7Commented:
Well, you actually should create 2 separate user groups. You can keep everyone that needs access disabled as regular users, but then creare another group (e.g. Storage Users), and increase their priveleges to allow them access to start services and anything else they need.
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johnb6767Commented:
Go back to usbstor.sys/usbstor.inf, and make sure that the System, and thier User group has permissions to read/execute the files (c:\windows\system32\drivers\etc and c:\windows\inf respectively...).....
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jillmjonesCommented:
I mean no sarcasm in this, but have you rebooted the machine? Even though the GPO may have applied, since it is a Computer policy, the policy cannot necessarliy finish unless the machine is rebooted.
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gwyddonAuthor Commented:
@ johnb6767: I have just made the changed to Group Policy now and will be forcing that through in the next 15min or so. I will let you know what happens.

@jillmjones: This issue has been happening for a month or so, so most of the machines have been rebooted several times now, including the PDC.
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gwyddonAuthor Commented:
Morning,

I ended up going to site to sort this yesterday, it was indeed another GPO that was kicking in higher up the tree that had no values configured.
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jillmjonesCommented:
Glad you found the answer.
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