I'm not sure what to call it but it only happens when I'm running jriver. I'm on win 10 and it happens sporadically. I'll leave the PC running for a few days, come back and all the icons are gone in the taskbar (date, network, volume etc) and nothing will run. If I hover over jriver I can see the window but when I click it nothing happens. Nothing works, the search is gone, the start button is gone, ctrl-alt-delete doesn't pull up anything. I have to do a hard reboot. I thought it may be an update that windows installed but I did a system restore prior to that and also turned off windows update. It was good for a longer period of time but when I went back today it happened again.
Admittedly, I've basically always had jriver running since I've had the PC so i'll try it for a bit without it running but I thought I'd throw it to the forum to see if they've had similar issues. I've been online and seen an issues with missing icons in the taskbar but I haven't found anything that says it shuts down the entire PC. Lots of win 10 bugs so who know.
Thanks.