FOR ANYONE INTERESTED:
After spending many hours last night tinkering away at the Respondus Lockdown Browser (and crashing my computer several times in the process...), I finally
found a way to do it on Windows 10, without
any Linux VMs, dual-booting, Microsoft Desktops 2.0,registry edits, stopping services, etc.
All I can say is that it has to do with something functionally similar
to Crtl+Shft+Esc, in a way where it's "always on top"
and more importantly, not detected, allowing you to run any program you wish!
As you can imagine, I'm very hesitant to share exactly how it's done because I have a lurking suspicion that there are Respondus employees browsing these threads, itching to patch the exploits as they are discovered.
I'll post proof in a bit.
PM me if you're interested in learning how to do this (actually, I'll probably get back to you faster by email: TriazoloGlow@cocaine.ninja
EDIT: Here's the video showing you that it's indeed possible (as of 2019/07/08) to circumvent the browser's lock-out features and access whatever files/programs/etc. you want.