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.
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.
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.

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