EFI, the Extensible Firmware Interface, is the firmware layer that initializes hardware before Windows loads. It checks CPU, ...
You can password protect a folder in Windows 10 using a program called WinRar, which is free to download and use.
I don not think you can run a 64bit O.S on a 32bit CPU. A 64bit OS should run 32bit apps just fine. As for your virtual machine, you can run a 32bit VM on a 64bit host. To run a 64bit VM you need ...