Yes, windows 7 does support secure boot in UEFI. UEFI allows for backward compatibility. IT can boot a MBR hard drive and provides a BIOS boot through its Compatibility Support Module (CSM) feature.
Yes you can do that, it won't hurt the computer.
Answer:Obscurity
Explanation: Security through the obscurity is the mechanism that is used for the security purpose in an operating system by inducing the confidentiality in the internal parts of the operating system.
The functioning of the security through obscurity(STO) works by hiding the flaws and errors related to security of the operating system.Thus , Signe is willing to use obscurity system.
.docx is the default file extension on a Word doc.