Acrobat Reader 32-bit to 64-bit migration no longer shows upgrade prompt on Windows

!--scriptorstartfragment-->

We are using free Adobe Acrobat Reader on Windows.

Background:

- In our customer environment, about half of the PCs have already been updated from 32-bit Reader to 64-bit Reader in the past.

- Because of that, we are now considering moving all remaining PCs to 64-bit Reader as well.

- Our current plan is to re-enable automatic updates and remove previous registry/GPO-based controls related to 32-bit/64-bit behavior.

Issue:

- Previously, in some environments, we observed behavior that appeared to guide or prompt users from 32-bit Reader to 64-bit Reader.

- However, in our recent test environment, we can no longer reproduce that behavior.

- We want to understand whether 32-bit to 64-bit migration for free Acrobat Reader on Windows is still active and how it is supposed to work now.

Questions:

1. Is 32-bit to 64-bit migration still active for free Acrobat Reader on Windows?

2. Is this migration silent by design, or should users see any prompt or UI?

3. If automatic updates are re-enabled, can we expect all remaining 32-bit clients to migrate to 64-bit within a short period?

4. If previous registry-based controls were used to suppress 64-bit migration, does removing those controls restore the normal migration behavior?

5. What is Adobe’s recommended method to move Windows clients reliably from 32-bit Reader to 64-bit Reader?

Official Adobe article I checked:

Adobe says the upgrade to 64-bit is gradual, silent, and currently applicable to a limited number of users.

Adobe also says users are excluded from automatic 64-bit upgrade if automatic updates are disabled, or under some other conditions.

Because of that, I want to confirm the expected behavior before changing settings for all clients.

``!--scriptorendfragment-->