The U disk security, set up a U Disk Management authority, in the Win7 system in the copy of the data you will appear in the Management authority of the problem, copy data was limited, so you can not normal operation, solve this problem must modify the U Disk Management Authority, how to modify it? Below I explain to you the specific procedure, Hope to help you solve this problem easily.
Modify the use of the U disk permission steps:
1, right click on the U-disk, in the right-hand menu click on "Properties", click "Security" → "advanced" → "Owner" → "edit" in the pop-up window, and click "Apply" or "OK" when you select "Replace the owner of child containers and objects", as shown in the following illustration:
2, again right click on the U-disk, click "Properties" in the menu on the right, click "Security" in the pop-up window, "edit" → "add" → "advanced" → "Find Now", find "Everyone" and then select it and click "OK" button can be as follows:
The above two methods, in the adoption of your settings, the user will be able to copy the contents of the U disk on the computer, but you need to note that the permissions of the U disk is modified, you should pay special attention to the security of U disk data.