No valid boot device
====================
My work desktop ceased to work. It says something like "no valid boot
device available". The pre-boot diagnostics does not see that device (a
SSD). The second SSD (with data) and the DVD drive are both visible. It
happened just before I came home. I turned off the computer and then
remembered that I forgot to do something. So I turned it on and this
thing happened. No tech support was available at that time.
I will call them tomorrow. Until that I will have to use my Lenovo x260
as a main workstation (I have used a Lenovo laptop - an x60s and then
the x260 as my only work computer during 2011-2017). So this situation
is not new for me. I hope that the problem is just a failed SSD and
they will be able to deal with it easily...