How do I disable the hardware buttons on my CanoScan LiDE 600F scanner?

How do I disable the hardware buttons on my CanoScan LiDE 600F scanner?

I'd like to completely disable the hardware buttons on my CanoScan LiDE
600F scanner. I never use them, and they are constantly getting pressed
accidentally. May need a registry hack.
I'm talking about these buttons (different model, but you get the picture).
The CanoScan Toolbox Settings only lets me reassign their functions, not
disable them completely. I've checked on Canon's website, and I have the
most up to date software. Can I edit settings in the Registry to do this?
E.g. I can see the button assignments in
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Canon\CanoScan Toolbox
Ver5.0\Devices\CanoScan LiDE 600F
But I am not qualified to blindly fiddle with the Registry. I'm hoping
someone who is more qualified, and ideally has a similar scanner, could
advise.