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Since a domain installation with Server 2003, some users cannot access their usb thumb drives. The computer will recognize them at first, beeping and blink the led on the drive twice, but will not show up to access. Gave a user full admin rights in the domain and still same. Log off and back on as Admin or other user with admin privileges and works &nbsp;fine. Tried permissions with the usbstor.inf and .pnf and registry \system\currentcontrol\ser<wbr />vices\usbs<wbr />tor changed value from 3 to 4 and back to no avail.
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Since a domain installation with Server 2003, some users cannot access their usb thumb drives. The computer will recognize them at first, beeping and blink the led on the drive twice, but will not show up to access. Gave a user full admin rights in the domain and still same. Log off and back on as Admin or other user with admin privileges and works  fine. Tried permissions with the usbstor.inf and .pnf and registry \system\currentcontrol\services\usbstor changed value from 3 to 4 and back to no avail.

USB Permissions problem in Domain.

Operating system security (OS security) is the process of ensuring OS integrity, confidentiality and availability. OS security refers to specified steps or measures used to protect the OS from threats, viruses, worms, malware or remote hacker intrusions. OS security encompasses all preventive-control techniques, which safeguard any computer assets capable of being stolen, edited or deleted if OS security is compromised, including authentication, passwords and threats to systems and programs.

OS Security

Microsoft Forefront, formerly known as Internet Security and Acceleration Server (ISA Server), is a network router, firewall, antivirus program, VPN server and web cache that runs on Windows servers. It includes identity management and protection systems, and discontinued systems for threat management and network protection, along with protection for Sharepoint and Exchange. The scope of discussions includes forward and reverse proxy, application and service publishing, virtual private networks (VPNs), outbound access rules, SSL certificates and network routing within either a single node or an highly-available array pairing.

Microsoft Forefront ISA Server

Windows Server 2003 was based on Windows XP and was released in four editions: Web, Standard, Enterprise and Datacenter. It also had derivative versions for clusters, storage and Microsoft’s Small Business Server. Important upgrades included integrating Internet Information Services (IIS), improvements to Active Directory (AD) and Group Policy (GP), and the migration to Automated System Recovery (ASR).