id summary reporter owner description type status component version resolution keywords cc guest host 4735 Harddisk Error Moquet "I had to kill my virtual machine because it hangs with an USB Problem. After that, VirtualBox was unable to access the harddisk with following error: VERR_VD_VHD_INVALID_ERR (the virtual disk was originally created for virtual pc. After unmounting the disk and trying to mount it again, I got another error VERR_NOT_SUPPORTED (see attached snapshot). In a second step, I tried to boot with virtual pc. It works! The virtual disk seems not to be really corrupt. " defect closed virtual disk VirtualBox 3.0.4 fixed other other