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Standard User Not Allowed to install USB Drives

Posted on 2010-09-01
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Last Modified: 2012-05-10
Hi All,
Well I have an issue that is a little odd. One of my users can login to any other machine on our Windows 2003 Domain and plug in a USB jump drive, and it installs fine, but when he goes back to his own PC, (once again with only Standard User Privileges) and he cannot install the USB Jump Drives without Admin Privileges. I have installed the USB drives on his PC with my Admin Login and then it will recognize the USB drive that I installed with Admin rights under his user login. So then I grab another USB drive fresh out of the package (exact same type A San Disk Cruzer) and once again the new USB drive will not install without Admin Rights. This is only happening on this one machine. I have SP3 and all updates installed via WSUS. I know that this is not a Group Policy issue as he can install on other machines with his user login without issue (and he is a standard user where ever he goes) but if I give him local Admin Rights to his machine it installs fine. I also tried a couple of other models of USB drives and get the same issue.
Any thoughts?
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Question by:HarleyITGuy
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Expert Comment

by:thomasacook
ID: 33578625
open c:\windows\inf


search for usbstor.inf and usbstor.pnf

right click each file and select the security tab and set what groups need access
other than administrator
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Author Comment

by:HarleyITGuy
ID: 33580029
Well thanks thomas, but I did perform your insrtucctions, and still the same thing. I even went to the extent that maybe the PC was not authenticating on the Domain properly, so I took it off the domain, deleted the machine from AD and re-added it back in, and still nothing. the odd thing is with these San Cruzer drivers, it goes through the whole installation process where the Driver Signing warning comes up, and the Add New Device Driver Wizard comes up (all of this with my Admin Login, but if I install on another machine, it just gives the pop windows on the task bar that it is installing, and is completed in a matter of moments. Very odd with the machine.
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by:thomasacook
ID: 33580448
Is it using U3?
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Accepted Solution

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thomasacook earned 250 total points
ID: 33580513
Maybe the local security policy isn't getting overwritten by group policy, or has been modified.

Go to Control Panel/Administrative Tools/Local Security Policy
In the left pane, double click the Local Policy Folder, click Security Options

In the right pane, Select Devices: Allowed to format and eject removable media,

under the security setting, right click on the policy, click
Properties, select Adminstrator and Interactive Users, click Apply and OK.
Reboot the PC and check to ensure it works.
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Author Comment

by:HarleyITGuy
ID: 33600643
Well I had the chance to try the above fix, but still to no avail. Any other ideas before I reformat and rebuild this machine?
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