To correctly remove a U disk:
1, the most common, in the bottom right corner of the desktop to find "Hardware connection flag", right click the icon pop-up "pop-up Onlydisk (the device name shown below)" Prompts, click again, you can remove the device normally.
2, open "This computer (computer)", find our U disk letter. Then right click on the U disk, in the pop-up list of options click "Pop-up" can be;
3, if you installed 360, it is more convenient, in the top right corner of the desktop will have a U disk small assistant, we directly click here to pull out the U disk.
If not on the desktop state we can click on the lower right corner of the 360U security guard in the click of the pop-up Netac Onlydisk can be.
4, and when we remove is encountered "now cannot stop the ' universal volume ' device, please stop the device later or the device is in use, close all programs or windows that may be using the device, and then try the dialog box when this is the case, avoid pulling a U disk directly! We can do this to remove the USB drive.
5, see whether there is a U disk file or the program is not closed, if so, first close them, of course, if you use 360 small assistant to pull out when you will be prompted to occupy the program, so we just close the corresponding program or the program opened the file can remove U disk.
6, check whether the U disk is being "copy" "Paste" and other tasks; when the U disk is being carried out file removal will also pop-up prompts, so the task is completed or canceled after the U disk removed can be;
7, if these are not able to solve the problem, you can try to log out of the account in order to unplug, log off without restarting so how will not affect your entertainment.