How to Fix PDFs Not Opening in Adobe Reader DC on Windows 10
Question details
The user is unable to open saved PDF files using Adobe Reader DC on their computer, with the application freezing upon attempt.

- Product
- Adobe Reader DC
- Device & OS
- Windows 10
- Scenario
- Attempting to open locally saved PDF documents using the default PDF reader application.
- Observed behavior
- Adobe Reader DC stops responding and fails to open the PDF files, even after the software has been reinstalled multiple times.
Before attempting to change software settings, restart your Windows 10 computer to clear any background processes that might be conflicting with the PDF reader.
Test Multiple Files Using the 'File > Open' Method
Opening files directly from the application menu helps determine if the issue is with a specific corrupted PDF or the application itself.
Sometimes double-clicking a file from the Windows File Explorer causes issues with file associations. Opening the file from within the software can bypass these glitches.
Open Adobe Reader DC first from your Start menu or desktop shortcut.
Go to the 'File' menu located in the top left corner of the application and select 'Open'.
Browse your local storage for the saved PDF file, select it, and click the 'Open' button.
Repeat this process with 2 or 3 different PDF files to see if the crashing issue is isolated to just one document.

Temporarily Disable Adobe Reader Protected Mode
Protected Mode restricts background processes but can sometimes cause Adobe Reader to freeze when opening files due to strict security permissions.
Update or Repair the Adobe Reader Installation
Outdated versions or missing installation files can cause the application to stop responding entirely.
Open, View, and Edit PDFs Seamlessly with WPS Office
If Adobe Reader DC continues to freeze, use WPS Office's built-in PDF reader to instantly open, read, and edit your saved PDF files on Windows 10 without lag or crashing.
- 1. Download WPS Office: Download and install WPS Office Free from the official website onto your Windows 10 computer.
- 2. Right-click the PDF: Locate the PDF file that will not open, right-click on it, and select 'Open with'.
- 3. Choose WPS Office: Select 'WPS Office' from the list of available applications to instantly load your document.
- 4. View and Edit: Read, annotate, or edit your PDF document smoothly within the intuitive WPS interface.

Frequently Asked Questions
Why does Adobe Reader DC stop responding when I try to open a PDF?
This usually happens due to corrupted application files, outdated software versions, conflicts with Windows 10 background processes, or 'Protected Mode' settings interfering with your system's file access permissions.
How do I know if my PDF file is corrupted?
You can check for file corruption by trying to open the PDF in a web browser like Google Chrome or Microsoft Edge, or by using an alternative PDF reader like WPS Office. If it fails to open across all programs, the file itself is likely corrupted.
Will reinstalling Adobe Reader delete my saved PDF files?
No, reinstalling or repairing Adobe Reader DC will only affect the application's core software files. Your saved PDF documents are stored separately on your hard drive and will remain intact.
What is Adobe Reader Protected Mode and should I keep it disabled?
Protected Mode is a security feature that isolates malicious PDF files to prevent them from harming your computer. It should only be disabled temporarily for troubleshooting. If disabling it fixes the issue, consider updating the software to resolve the underlying conflict rather than leaving your system unprotected.




