id summary reporter owner description type status component version resolution keywords cc guest host 7029 BSOD win7 x64 everytime oxoocoffee "This might be related to bug #6922 that I reported. As reported in bug 6922 vbox fails to start when Clear 4G USB connected but virtualbox.exe is running in Task Manager. Now if I pull out the Clear 4G USB card from laptop while virtualbox.exe process is running (no ui visible) windows crashes to BSOD every time. If I first kill virtualbox.exe process first than pulling out USB is not a problem. It took me some time to notice this since my first impressions were that this was purely random and it was problem with Clear. Also there seems to be a problem with this version with USB external floppy (also reported by me) failing to mount floppy in guest (windows XP x32). Below is log of a crash from my host (Win7 x64) Log Name: System Source: Microsoft-Windows-Kernel-PnP Date: 6/18/2010 5:34:07 PM Event ID: 219 Task Category: (212) Level: Warning Keywords: User: SYSTEM Computer: laptop Description: The driver \Driver\WUDFRd failed to load for the device USB\VID_147E&PID_1000\5&899163b&0&1. Event Xml: 219 0 3 212 0 0x8000000000000000 27278 System laptop 35 USB\VID_147E&PID_1000\5&899163b&0&1 3221226341 14 \Driver\WUDFRd 0 " defect closed USB VirtualBox 3.2.4 fixed Clear 4C USB missing UI BSOD other Windows