PDF Opening Issues

Fix PDF Preview Pane Not Working in Adobe Acrobat Pro 64-Bit

Jason MillerJason Miller Oct 23, 2026 869 views

Question details

The user needs to restore PDF preview functionality in the Windows File Explorer preview pane after updating their software.

How to Fix the Windows Preview Pane for PDF Files in Adobe Acrobat Pro 64-Bit
Product
Adobe Acrobat Pro
Device & OS
Windows
Scenario
The user has installed or switched to the 64-bit version of Adobe Acrobat Pro and wants to view PDF thumbnails directly in File Explorer without opening the files.
Observed behavior
The Windows preview pane stops displaying PDF previews and shows an error or blank space instead.
Before you start

Before uninstalling Adobe Acrobat, make sure to close File Explorer and any open PDF documents to prevent file locks from interrupting the removal process.

Solution 1Recommended

Clean Reinstall Adobe Acrobat Pro

Completely remove the existing installation using the Adobe Acrobat Cleaner Tool and reinstall the latest 64-bit version to fix corrupted registry keys.

Upgrading to or installing the 64-bit version can sometimes leave conflicting 32-bit registry entries behind. A clean installation forces Windows to rebuild the preview handler associations correctly.

1
Uninstall the Current Application

Navigate to Windows Settings > Apps > Installed apps. Locate Adobe Acrobat Pro in the list, click the menu icon, and select Uninstall.

2
Run the Adobe Acrobat Cleaner Tool

Download the official Adobe Acrobat Cleaner Tool from Adobe's website. Run the tool to completely wipe leftover registry entries, preferences, and background files.

3
Restart Your Computer

Reboot your Windows system to ensure all background processes are terminated and the registry changes take effect.

4
Reinstall and Update

Download the latest 64-bit Adobe Acrobat Pro installer from the official Adobe Help Center. Install the application, open it, and go to Help > Check for Updates to ensure you are on the newest release.

Automatic Association: Reinstalling the latest version will automatically register the 64-bit PDF preview handler with Windows File Explorer.
Powerful PDF and Office Suite

View and Edit PDFs Seamlessly with WPS Office

If you are tired of dealing with missing preview handlers and heavy installations, WPS Office provides a fast, lightweight, and robust built-in PDF reader that perfectly integrates with Windows File Explorer.

  1. 1. Download and Install WPS Office: Get the free WPS Office suite from the official website and run the installer on your Windows PC.
  2. 2. Set as the Default PDF Handler: Right-click any PDF file, select 'Open with' > 'Choose another app', pick WPS Office, and check 'Always use this app' to update your default settings.
  3. 3. Preview and Manage Files: Open File Explorer to immediately see rich thumbnails and previews of your PDFs, or double-click to edit them directly in the WPS PDF workspace.
Set WPS PDF as your default reader to instantly restore document previews in Windows File Explorer.Fully compatible with all standard PDF files and Microsoft Office formats (.docx, .xlsx, .pptx).Lightweight architecture that avoids the heavy system resource usage of traditional PDF editors.Read, annotate, edit text, merge, and convert PDFs directly within one unified application.
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Frequently Asked Questions

Why did the preview pane stop working after upgrading to 64-bit Acrobat?

The transition to the 64-bit version can occasionally fail to update the Windows registry keys responsible for the PDF preview handler, breaking the communication between File Explorer and the PDF application.

Does running the Adobe Acrobat Cleaner tool delete my saved PDF files?

No. The Cleaner tool only removes system files, registry keys, and software preferences related to the Adobe application. Your personal PDF documents and data remain completely safe.

How do I turn on the Preview pane in Windows 11?

Open File Explorer, click the 'View' button on the top command bar, hover over 'Show', and click 'Preview pane' from the dropdown menu to toggle it on.

What should I do if PDF previews still don't appear after reinstalling?

Ensure that the 'Show preview handlers in preview pane' setting is enabled in your File Explorer Folder Options. If that fails, consider switching to a lightweight alternative like WPS PDF to restore Windows preview handler functionality.