virtualbox.org

Dear Stickybit85 and everyone,

I can also solve the problem by your way!!
Perfect! Both the onboard USB and the Renesas board worked in the guest OS, so I removed the board.

The ASUS DVD version is :
B150M SERIES
Intel(R) B150 Chipset Support DVD Rev.1206.01
M4845

Thank you very much again.
Your best regards,
Harry2010

Thank you, Stickybit85

I solved this problem!!!
Hostsystem: Windows 10 Pro
GuestOS: Windows 7, 10
Mainboard: Asus Z170-A
CPU: i5 Skylake
Virtualbox:
5.1.8 + Extensions

At first I've installed only AI Suit3 with Lan Turbo.
USB device absent in virtual machine in all USB modes 1,23.

Then I done : Control Panel - Programs&Features - AI Suite3 - Uninstall
Application "USB booster" (or something like this) was installed Why?
I've removed only USB booster and USB start working!
Then I've installed all drivers from Asus disk and USB works.

Thank you all !!!