Access 365 32/64 bit clash (1 Viewer)

[Freshman]

Hi all,
I have numinous Clients running my Access (mdb format) for many years.
However I'm now battling with a Client running Office 365 64 bit.
The Access 2007 Run-time I normally ship with my app works fine but as soon as the Client re-boot I have to either re-install 2007 RT or run a "repair" on the Office 365.
I tried to install Access 365 or 2016 Runtime (32 bit) but can't be installed where 64 bit exists.

It also seems impossible to uninstall the Access part of 365.

Forgot to add - If I try run my app on 365 it says it is developed in 32-bit and I need to install a 32-bit version of Access to run it.
My own system is a 64-bit with full Access 2007

Any advice on this?

Thanks a lot

 

[Dreamweaver]

Update to accdb never used runtime so just a guess

 

[Freshman]

I don't want to go the accdb route due to the menus/ribbon. 2007 is the last version with the original "2003-look" menus. But I might be forced to do that and create custom menus which will be a lot of work. Will decide. Hope for a RT solution...