I had not used my Zorin Computer for over a month and today it called for updates. It said that some packages will be removed (not sure of the exact words) and a new system will be installed. I went ahead with that but now when it boots I get first the Zorin Logo then a few minutes later "ZORIN" on the screen, I see the hard disk activity for some time and the screen goes blank and a cursor blinks on the tom left hand side. No login screen that I usually see. I push the power button and I see disk activity like I see during a normal shutdown and the PC powers off. Turning it on results in the same issue. I am running Zorin OS 16.1, 64 bit,Windows System X11.
I rebooted again and pressed the ESC key, got a menu selected Advanced and got the option of several kernels to boot and so I selected then second kernel on the list "Zorin, with Linux 188.8.131.52-generic". This came up fine and I am able to login. My PC does have a Nvidia Integrated Graphics card. I am running Zorin on a ASUS ET2700 All-in one Computer.
Any help appreciated.