Acrobat Reader DC migration to 64-bit

Starting with February 2021 release, 64-bit versions of Acrobat Reader DC, Acrobat Standard DC, and Acrobat Pro DC on Windows are available to download for selected geographies. Now, the 64-bit version of Acrobat Reader DC is available to download for all locales:

Download Acrobat Reader DC 64-bit

If you have installed the 32-bit Acrobat Reader DC application, you will be automatically upgraded to the 64-bit version of Acrobat Reader DC gradually. This upgrade is silent and currently applicable to a limited number of users. You are excluded from the automatic upgrade to 64-bit if you do any of the following:

  • Use an Enterprise or Federated ID to sign in to Acrobat Reader DC.
  • Customize Acrobat Reader DC using the Acrobat Customization Wizard and install it.
  • Install third-party plugins.
  • Disable the automatic updates in Acrobat Reader DC.

How to identify if Acrobat DC 64-bit or Acrobat Reader DC 64-bit is installed

The 64-bit application is a unified application for Acrobat DC and Acrobat Reader DC. The default installation location is C:\Program Files\Adobe\Acrobat DCIf you have installed Acrobat Reader DC 64-bit and you purchase an Acrobat DC subscription, the Acrobat Reader DC 64-bit application will upgrade to become a fully functional Acrobat DC 64-bit application. To identify the installed application, do the following:

  1. Quit Acrobat DC or Acrobat Reader DC application if it's already running.

  2. In Start > Search, type RegEdit and press Enter. The Registry Editor is displayed.

  3. Browse to the following registry locationHKEY_LOCAL_MACHINE\SOFTWARE\Adobe\Adobe Acrobat\DC\Installer\, and check the value of the key SCAPackageLevel.

    • If the value of SCAPackageLevel is 1, the installed application is Acrobat Reader DC.
    • If the value of SCAPackageLevel is greater than 1, the installed application is Acrobat DC.

How to stop automatic upgrade of Acrobat Reader DC 32-bit to Acrobat Reader DC 64-bit

To stop the Acrobat Reader DC 32-bit application from automatically upgrading to the 64-bit version, create the following registry key before the first launch of the application:

  1. In Start > Search, type RegEdit and press Enter. The Registry Editor is displayed.

  2. Browse to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown.

  3. Create the following key:

    Key: bUpdateToSingleApp

    Data type: REG_DWORD

    Default Value: 0

  4. Close Registry Editor.

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