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Block USB Storage Devices

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Last Modified: 2020-01-13
We're trying to implement a GPO that will block USB storage devices.
It appears that there are at least two approaches at the broad design level:
1) Apply the GPO to users.
2) Apply the GPO to computers.
We tried applying a new GPO to users like this:
  • Set up a User's Security Group
  • Set up a GPO with Scope including the User's Security Group
  • and with Authorized Users having READ and NOT Apply GPO
  • Then, the GP settings for removable storage are added as well
  • Then the GPO is linked to the User's OU
  • Then blocked Users are added to the User's Security Group
It didn't work for us.  

The other approach would seem to be:
  • Set up an OU of Computers
  • Create a simple GPO with the same settings for removable storage
  • Link the GPO to an appropriate Computer OU or set of them
  • Move pertinent computers into the appropriate Computer OUs

I haven't done the latter yet but I have more confidence in it.

Any suggestions?
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