Why doesn't the preview of emails (.msg) work in Explorer with the 64-bit version of Outlook installed, but works with the 32-bit one?

Question

Windows

Actually the essence of the question. There are saved messages in the folder. When a 64-bit office is installed, when a file is selected (so that the preview opens), an error occurs, saying "The default mail client has not been selected or the current client cannot complete the request." Of course, it is by default, in the programs, in the registry, I checked.
There is sowing crap under different Windows, so that's not the point. Yes, and as I say, with a 32-bit office, everything is gorgeous - letters are displayed without problems in the preview.
Where to dig and how to be?