I'm starting to work with Docker and after a few hours of trying to make it work, I found out that my BIOS was blocking it and that I needed to adjust the BIOS settings. I was told that the BIOS is somehow related to the motherboard.
How can the BIOS block this kind of process, overruling the operating system?
Best Answer
It's not that the CPU is blocking a program; it doesn't have a concept of apps at that low of a level. The problem is that Docker on non-Linux operating systems can require hardware virtualization. You haven't specified your OS, but I did a tiny bit of snooping and discovered that you probably use Windows.
Hardware virtualization is a CPU feature that, as you might guess from the name, lets the CPU help with virtualization. On many machines, you have to enable it in the BIOS. This is, in part, to prevent security issues. Basically, you couldn't start a program because it attempted to use a feature that was effectively absent as opposed to actively blocked.