unable to access data on usb keys or cds\dvds

I am having a real problem with accessing data on anything other than the c: drive.
The system registers that a usb key or cd\dvd has been inserted and even displays information on the drive.
Problem is that when you try to open either with the autoplay - open to view files or the drive icon in my computer the message comes up

Location is not accessible. Access denied.

I have tried various keys and disks and all act the same

itad said:

I am having a real problem with accessing data on anything other than the c: drive.
The system registers that a usb key or cd\dvd has been inserted and even displays information on the drive.
Problem is that when you try to open either with the autoplay - open to view files or the drive icon in my computer the message comes up

Location is not accessible. Access denied.

I have tried various keys and disks and all act the same

right click the drive and get props. see who owner is.

props do not show owner but sharing is for everyone with full control