Device Permission Restrictions

Based upon Microsoft^® driver design or the device manufacturer design, some restrictions apply to devices when assigning user access permission.

The following table shows the allowable user access permissions and restrictions for each predefined device class.

Device Class	Permission Allowed	Restriction
Biometric Devices	Read-Write/None; Select bus type	Only for LocalSystem or Everyone.
Citrix Network Shares	Read-Write/None	Any user or user group.
COM/Serial Ports	Read-Write/None; Select bus type	Any user or user group.
CD/DVD Drives	Read only/Read-Write/None; Select bus type	Any user or user group.
Floppy Disk Drives	Read only/Read-Write/None; Select bus type	Any user or user group.
Keyboards/Mice	Read only/Read-Write/None; Select bus type	Only for Everyone.
Imaging Devices	Read-Write/None; Select bus type	Any user or user group.
LPT/Parallel Ports	Read only/Read-Write/None; Select bus type	Any user or user group.
Modems/Secondary Network Access Devices	Read-Write/None; Select bus type	For regular modems, any user or group.
Modems/Secondary Network Access Devices	Read-Write/None; Select bus type	For ISDN modems or network adapters, only for the Everyone group.
Palm Handheld Devices	Read-Write/None; Select bus type	Any user or user group.
Portable Devices	Read-only/Read-Write/None	Any user or user group.
Printers	Read-Write/None; Select bus type	Any user or user group.
PS/2 Ports	Read-Write/None; Select bus type	Only for LocalSystem or Everyone.
Removable Storage Devices	Read-Write/None; Select bus type	Any user or user group.
Removable Storage Devices	Encrypt, Decrypt, Export, Import; Select bus and drive type	Any user or user group.
RIM Blackberry Handhelds	Read-Write/None	Any user or user group.
Smart Card Readers	Read-Write/None; Select bus type	Only for LocalSystem or Everyone.
Tape Drives	Read-Write/None; Select bus type	Any user or user group.
User Defined Devices	Read-Write/None	Any user or user group.
Virtualized USB Devices	Read-Write/None	Any user or user group.
Windows CE Handheld Devices	Read-Write/None	Any user or user group.
Wireless Network Interface Cards (NICs)	Read-Write/None	Only for Everyone.

Device Permission Restrictions

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