Acronis extended capacity manager and windows 10?

I have an older machine with a 4TB drive. Using Acronis it works fine with Win 7 but Win 10 doesn’t see or let me access the extend space. Is this a known problem? Is there an upgrade for Acronis or a work around?

Failing that. I’m thinking of replacing the boot disk with a SSD. If I then change the whole 4TB drive to GPT will Win 10 then be able to access everything?

Everything important is already backed up to my external “My Book”

Hello and welcome to the WD Community.

As of now WD does not have a new version of the software.