Did some research...
Typing below in terminal seems to fix the freezes:
echo never | sudo tee /sys/kernel/mm/transparent_hugepage/defrag
echo 0 | sudo tee /sys/kernel/mm/transparent_hugepage/khugepaged/defrag
Thought this was fixed, but it's not.
Still getting random freezes of the Linux host when Windows 10 virtual machine is running?
Perhaps the above does not survive a reboot?
I found something else:
In terminal type:
sudo nano /etc/default/grub
in quote after "quiet splash"
then save and exit
then in terminal type:
(and then reboot)
Haven't tested thoroughly but am hoping it solves the issue...
Seems to be ok now with modification to Grub.
Nope, still having host freezes...
Going back to VirtualBox, thanks