1, empty your clipboard, because we are copying files are used in the "copy" "Paste" way, and if the copy is a U disk on the file, this file will always be placed in the system's clipboard, in the standby state. And if this is the case we want to delete the U disk, there will be the above can not stop the U disk prompts.
2. If you feel that the above method is still invalid, you can use the following method: Press the "Ctrl" + "Alt" + "Del" key combination of the keyboard at the same time, the Task Manager window appears, click the Process tab, and look for the "rundll32.exe" process in the image name. Select the "rundll32.exe" process and then click "End Process", which will eject the Task Manager warning and ask you to decide whether to close the process and click "Yes" to close the "rundll32.exe" process. Then remove the U disk will be able to remove the normal.
When using this method, be aware that if you have more than one "rundll32.exe" process, you need to shut down more than one "rundll32.exe" process.
3, this method is also the use of Task Manager, while pressing the keyboard "Ctrl" + "Alt" + "Del" combination of keys, the "Task Manager" window, click "Process", look for "EXPLORER." EXE process and end it. At this time you will find your desktop is missing, please do not panic, continue to do the following, in the Task Manager click "File"-"New task"-Input explorer.exe--OK. Remove the USB drive again and you will find it safe to delete.
4, this method is the simplest, but the most time-consuming, that is, restart your computer, if you feel that there is a problem to solve some problems, you can use the following early precautions: Turn off the system preview function.
How to: Double-click My Computer--tools--Folder Options--general--tasks--Use the Windows Traditional style folder and click OK. So once and for all.
Tips: At present some U disk technology is in place, and some U disk directly Plug and pull can also. But no matter how good the U disk, there is a kind of time is absolutely not directly, that is to look at your u disk of that small red light, small lights in the flashing time to say is constantly reading and writing data, this is not to pull, otherwise light damage data, heavy u disk scrap.
The above several methods, hope to be helpful to everybody.