virtualbox.org

I have simply replaced my damage HD, reload Dell Recovery image, and installed fresh Vbox+Ext (last version 6.0.
Same laptop, same VM installed on external drive.

Now,
I am not able to attach any USB device, on Host I can see VboxUsb device on Device Manager but not available on the Guest.

virtualsaver wrote:I can see VboxUsb device on Device Manager but not available on the Guest.

What does that mean? Can you describe the exact steps and the exact errors?

I can see from the log that you're using a Win7-64 template and the xHCI (USB3) controller:

00:00:02.556650 Guest OS type: 'Windows7_64'
...
00:00:02.606321 [/Devices/usb-xhci/] (level 2)

That won't work! Windows 7 doesn't have support for USB3. Please read the following: USB basics and troubleshooting, #6: Guest support.

It means not USB available on Virtual Machine even correctly detached from Host.

Not understand why you said "that don't work!" I have always used USB 3.0 on my windows 7 virtual machine, simply installing

https://downloadcenter.intel.com/it/dow ... set-Family

as described #6: Guest support

I supposed nothing was showed on log, no comflict or something else.

Fyi I have discovered and fixed the issue following

viewtopic.php?f=2&t=84040

To summarize

first of all, edit your registry

- Open the Windows registry, by clicking on Start > Run and typing regedit
- Navigate to the following location HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Class\{36FC9E60-C465-11CF-8056-444553540000}
- In the right hand panel, if the the UpperFilters entry exists, then delete it

Install virtualbox USB driver manually.

- Goto folder C:\Program Files\Oracle\VirtualBox\drivers\USB\filter
- Click right mouse button on file named VboxUSBMon.inf
- Check Install(I) (maybe.. My window is korean so it dose not exact. )

virtualsaver wrote: Not understand why you said "that don't work!" I have always used USB 3.0 on my windows 7 virtual machine, simply installing

The time to mention installing third party drivers was in your first post.