We need to add virtio-rng driver installation to guest tools iso for all supported Windows versions.
Currently the device is added but shows up as unknown device and the driver needs to be installed from web
Similar downstream changes needed, feel free to open a follow-up bug
+++ This bug was initially created as a clone of Bug #1337101 +++
RHEL 7.1+ transparently supports improvements to entropy of random numbers. It should be safe to enable it by default for all 7.1+ guests
See http://rhelblog.redhat.com/2015/03/09/red-hat-enterprise-linux-virtual-machines-access-to-random-numbers-made-easy/ for more details
--- Additional comment from Michal Skrivanek on 2016-11-25 10:20:38 CET ---
this needs driver installation on Windows
Verified on virtio-win-1.9.0-3
Although only iso image contains this driver, floppy drive does not.