VirtualBox USB installation issue on Win 7 64 bit host

[Royaltyrant]

Hello,

I was running VirtualBox 3.0.8 (same problem with 3.0.6 and now with 3.0.10) on a Windows 7 Ultimate 64 bit host (German edition, though the forum-posts show the same problem for users of English editions too). Just upgraded from Vista Ultimate 64 bit (German edition too) where all was ok. Hardware is a Core 2 Quad Intel CPU (Q8300) with 2,53 GHz and 8 GB RAM. I´m using a guest with Win 7 RC 32 bit (no 64 Bit RC available). The guest has 2 GB RAM. At first (then still with VBox 3.0.6, which I had been running under Vista 64 Bit, due to frequent bluescreens in the guest with VBox 3.0.8) everything seemed ok after upgrading the host to Win 7. The VM was starting normal and there were no warnings, etc. When I experienced some bad performance of USB-Gear in the guest (i.e. a Philips Speechmike Pro, LFH 6274) after upgrading from Vista to Win 7 I tried upgrading VBox to 3.0.8. While the VM still starts and runs normally, all USB support for the VM is gone. Changing back to VBox 3.0.6 didn´t help. After installing VBox and starting the VM, the host tries to install "VirtualBox USB" driver but is not succesfull. The host displays a message saying that the driversoftware was not installed, added by "VirtualBox USB Device unplugged". Remember: I´m from Germany an I have a German edition of Windows so the messagetext is my translation; the exact message may differ on nongerman editions of Windows, but the meaning is translated correctly.

Uninstalling and reinstalling VBox did not help (either with 3.0.6 or 3.0.8; I tried it repeatedly). Uninstalling "VirtualBox USB" from the device manager does not help either. Originally "VirtualBox USB" was not even shown in the device manager, even with "show hidden devices" selected, since the host sees it as a disconnected device. I had to add the system variable devmgr_show_nonpresent_devices=1, before it was shown as a greyed out device, which then could be deleted. Needless to say, that I did boot my computer after each attempt to install / uninstall VBox, or USB-Drivers.

I tried VBox 3.0.10, build 54097 (PUEL), when I became aware it had become available today (that was around 10:00 am German local time (GMT +1), but to no avail. It´s still exactly the same story: Wben the VM starts for the first time after installation of VirtualBox, the host shows the usual message, that it has detected a new USB device and is installing devicedriversoftware for it. Then - while the VM is still starting) the host displays a notification, that the devicedriversoftware could not be installed and states, that the device "VirtualBox USB" had been unplugged. After that, the "VirtualBox USB" device is nevertheless shown in the devicemanager as a hidden (but seamingly installed) device (at least, when the proper systemvariables have been set), but no USB support is available for the VM. Mind: the VirtualBox GUI shows USB support as available (at least it is possible to enable USB support, including USB 2, and set a filter for USB devices), but the "VirtualBox USB" device in the host devicemanager remains hidden and greyed out and the VM can not access USB devices on the host. When I try to force access by checking a USB device in the devices menu (my translation again) I just get a message, that the device is busy, due to a previous request (probably the filter from the GUI, still trying to connect the device to the VM). Starting the VM without filter does not help either. It´s just, that in this case on the first try to activate a USB device there happens nothing (including no checkmark in the list of USB devices available on the host) and on every following try I get the "busy" notification. In the devicemanager of the guest none of the USB devices of the host are present.

On further attempts to start a VM, VirtualBox (or probably Win 7) does not again try to install the devicedriversoftware. Further if I try to force a detection for new hardware in the devicemanager of the host it does not see the - running - VM as a new device, even if I manually delete the greyed out "hidden" VirtualBox USB device first. For a new installation attempt of the VirtualBox USB driversoftware to happen I have to uninstall VirtualBox, manually delete the "VirutalBox USB" device in the devicemanager of the host and then reinstall VirtualBox.

Is there a solution????????????????? I really need my VBox USB back.

[Royaltyrant]

VBox.log of VM startup with VBox 3.0.10