Fix Acrobat Pro DC Installation Rollback and Imslib Error
Question details
The user needs to resolve an issue where Acrobat Pro DC installation completely rolls back due to an Imslib error, even after previous uninstallation.
- Product
- Adobe Acrobat Pro DC
- Device & OS
- not provided
- Scenario
- Attempting to reinstall Acrobat Pro DC on a computer that has Creative Cloud or older Creative Suite software installed.
- Observed behavior
- The Acrobat Pro DC installation fails, displays an Imslib error message, and automatically rolls back the entire installation process.
Ensure you have your Adobe serial numbers or subscription login credentials accessible, as this fix requires a complete removal and reinstallation of Adobe components. Save your work and close any active Adobe background processes.
Perform a Clean Reinstallation of Adobe Creative Cloud and Acrobat
Use Adobe's official removal tools to clear out corrupted files and folders causing the Imslib error before reinstalling Acrobat DC.
The Imslib error is typically caused by leftover, corrupted license or preference files from previous Adobe installations conflicting with the new installer. Removing these residual files manually and via the Cleaner Tool ensures a clean environment for the new installation.
Open your system's application manager and uninstall all Adobe Creative Cloud applications, including the Creative Cloud Desktop application. Choose to remove application preferences if the uninstaller prompts you.
Download and run the Adobe Creative Cloud Cleaner Tool from the official Adobe website. Follow the on-screen prompts to forcefully remove any remaining Adobe host files and leftover registry entries.
Navigate to your system's directories and manually delete the 'Adobe PCD' and 'SLStore' folders. These folders contain older configuration and license data that triggers the Imslib error during the new installation.
Reboot your computer immediately after removing these files and folders. Do not skip this step, as it clears the system cache and fully releases any locked Adobe processes.
Download the correct installation files for the classic or subscription version of Acrobat DC from Adobe's official download page. Run the installer and activate the product with your license or Adobe ID.
Skip the Installation Errors with WPS Office's Built-in PDF Editor
If troubleshooting Adobe Acrobat installation errors becomes too time-consuming, consider switching to WPS Office. It provides a lightweight, highly compatible alternative with powerful built-in PDF editing tools, entirely bypassing complex license rollbacks.
Frequently Asked Questions
What is the Imslib error in Adobe Acrobat?
The Imslib error typically points to a failure in loading an Adobe library file related to licensing or user profiles. It often happens when leftover configuration files from older Creative Suite or Creative Cloud software conflict with a new Acrobat installation.
Where can I find the Adobe PCD and SLStore folders?
On Windows, these folders are generally located in the 'ProgramData' or 'Common Files' directories under Adobe. On macOS, you can find them in the 'Library/Application Support/Adobe' directory. You may need to enable hidden folders in your OS settings to view them.
Why is my Acrobat DC installation rolling back at the very end?
Installations typically roll back when a critical registry key or folder permissions cannot be written. If the installer encounters corrupted SLStore or PCD folders, it triggers a fatal error and automatically undoes the installation to protect your system's stability.
Do I absolutely have to uninstall all Adobe apps to fix this error?
While it is sometimes possible to fix the error by just deleting the licensing folders, completely uninstalling Creative Cloud apps and using the CC Cleaner Tool is the most reliable method recommended by Adobe to prevent the Imslib error from returning.
