Acrobat Reader migration to 64-bit

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

Download Acrobat Reader 64-bit


If you have installed the 32-bit Acrobat Reader application, you will be automatically upgraded to the 64-bit version of Acrobat Reader 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.
  • Customize Acrobat Reader using the Acrobat Customization Wizard and install it.
  • Install third-party plugins.
  • Disable the automatic updates in Acrobat Reader.

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

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

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

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

To stop the Acrobat Reader 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.

 Adobe

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