Problem Ejecting USB Mass Storage Device

I guess nowadays many of us will faced this problem on daily basis when you click the “Safely Remove Hardware” icon in the system tray to remove hardware, and then you receive the error message "Problem Ejecting USB Mass Storage Device-The device ‘Generic volume’ cannot be stopped right now. Try stopping the device again later".
Don’t fret, cos there are 2 good solution I would like to recommend to fix this problem.
#1 Running ProcessExplorer
1. Download a free utility from a third-party Web site at the following address
2. Run the program, Go to Find, and Find Handle or DLL in the tool menu.
3. Type the drive letter of the USB device in the Handle or DLL substring textbox, and press Search Button.
4. Find the process and its PID in the following box.
5. In system process tree view, find the process according to the Find Handle or DLL dialog box.
6. Press Ctrl + H to show Handles in Lower Pane View.
7. Find the File according with the drive letter, and right click it, choose Close Handle.

User Comment: For my computer, I found out that the culprit was this stupid MIM.EXE (MusicMatch JukeBox) which is running behind the window and accessing the files. So I have to remove this MIM.EXE from the regedit to solve the problem.

#2 Unlocker
1. Another program which you can download from
2. Similarly, run this program to see what is accessing your USB Mass Storage Device.
User Comment: If you happen to be hit by some kind of virus, then you will have to run virus removal ( in safe mode to get rid of the virus first. 
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