Comment # 2 on bug 1205737 from T Adams

First, Larry, thanks for the quick response.

I printed out your instructions, and followed them to the letter, with one
exception: I also had virtualbox-host-source installed, and added it to the
list of files to 'zypper rm' and 'zypper in.'  So: I now have installed:

virtualbox 
virtualbox-host-source
virtualbox-kmp-default
virtualbox-qt

All version 7.0.4

I used VBoxManage to install the new extension pack, and made sure to install
the 7.0.4 guest additions before trying the scanner.  I remembered to reboot,
as you suggested.

Unfortunately: same results as before, with the same Windows "One of the USB
devices attached to this computer has malfunctioned" error message.