Sometime, b’cos we used the option hiding inactive icon, the "safely remove hardware" icon is missing and we want to eject our thumb drive or SD Card. You can used the following method:
1. Click Start, Go to "Run"
2. Type the following >RunDll32.exe shell32.dll,Control_RunDLL hotplug.dll and click OK.
3. By now you should be able to see the window for removing hardware.