Everytime that I cast a video directly from my External HDD in "Videostream For Google Chromecast", the External HDD can't be safely reomved, it says that a program is still in use by the device, but I close Chrome and the processes associated with it, I even tried to identify the issue through "ProcessExplorer" but nothing seems to work, so I have to turn off the computer and remove the external HDD everytime I use Videostream App. Anyone facing this issue?

It ony happens with Videostream and not other apps.