TL;DR:
Test with Virtual Box 6.1.26 if you are facing issues installing Whonix.
So this is my personal and independent check and your results might vary here so forgive me if we don’t seem to able to reproduce! With that heads up aside, let’s dive in deeper as to why I am here advocating an older version against a newly updated and preferred one.
I have tested different Windows variations over the time including 7 to LTSB (LTSC/IoT) of 10/11 and along with standard versions such as Home/Pro etc. and over the course of period I seem to have noticed that Virtual Box, although works “most” of the time but if it meets with some modifications done at system level (such as machines shipped with already modified policies to meet the compliance or as simple as tweaking done to remove Windows bloats (nothing major)), than we begin to encounter more errors.
These are not some easy errors either but fatal ones including the dreaded signature mismatch (nothing to do with images at all in this case!), and it will throw multiple warnings now to not installing Python support (which is not even required to run Whonix!), or how about more warnings about different dependencies such as missing libraries? (even when they are pre built within Windows). This list is so huge that I can’t begin to explain my frustration of solving each of them and with different systems the issue varies!
Can a single version be a winner that can survive such changes of OS? (Yes, at the cost of missing patches!). My answer is to test out “6.1.26” and see for yourself.
I am not saying newer ones are not reliable but I have been facing various issues with these which are never there with older version of Virtual Box.
So this is a small notation here for anyone interested… 