How do you install 64-bit version of Reader

We have a couple dozen computers we've "standardized", and have Adobe Acrobat Reader DC installed on them. We update these PCs weekly with any new versions.

Recently, our links to open Reader stopped working on SOME of these PCs. It turns out that SOME of them updated to 64-bit versions instead of 32-bit versions. It doesn't really matter which version we use, so 64-bit is fine, but when I uninstalled the 32-bit version and proceeded to reinstall the program with the latest installer, it just reinstalls the 32-bit version. How do you CHOOSE which version gets installed??? it never asks you during the install process!

We are running Windows 10 Pro PCs.