Dark Mode Does Not Stay - Reverts Always Even After Repair And Fresh Installation

Hi @anmatr, 

Thanks for reporting the issue with Dark Mode not staying enabled in Acrobat Reader, even after a repair or fresh installation.

From what you’ve described, it’s quite likely you’re working on a company-managed or IT-administered machine. In such environments, settings like Dark Mode may not persist due to system policies or restrictions.

Here are some potential reasons why the preference isn’t sticking:

IT Policies or Registry Restrictions:

Your organization may be enforcing certain Acrobat settings via Group Policies or locked registry keys, which can override or block preference changes — including UI appearance.

Profile or File Permission Issues:

If your user account doesn’t have write permissions to certain folders (like AppData) or registry paths, Acrobat won’t be able to save your preferences. This is especially common in restricted or non-persistent profiles.

Reset on Login or Restart:

Some IT setups restore system or application configurations at each login or reboot, wiping any personalized settings like theme choices.

What you can try:

• Check with your IT support team if any policies are being applied to Acrobat.

• Confirm whether you have write permissions to your profile and settings folders.

• Try enabling Dark Mode on a personal, non-managed device to see if the issue is specific to your work setup.

If you’re also noticing other settings (like recent files or toolbar layout) resetting, that further confirms it’s likely an environment-managed restriction.

Let us know if you’re on a managed system or can test it on a personal machine — that will help narrow it down!