Hello! After I plug my Lumia 928 into my Windows 8 PC, I can't eject it via the system tray. It always says that Windows can't stop the device because a program is still using it, even if I just plugged it in two seconds ago. My PC is configured to take no action when the phone is plugged in. I've tried logging out and even rebooting the PC, but it doesn't help. Has anyone else seen this? Any suggestions? Is it safe to ignore the warning and just unplug the phone? Thanks in advance!