Fix Adobe Acrobat Installation Stuck at 90 Percent (Newer Version Error)
Question details
The user is unable to complete the software installation because the setup process stops at 90% and displays an error indicating that a newer version is already installed.
- Product
- Adobe Acrobat
- Device & OS
- Windows
- Scenario
- Reinstalling or installing the PDF software after a previous version was uninstalled.
- Observed behavior
- The installation process halts at approximately 90% and throws Windows Installer Error 1722, incorrectly stating a newer version is already present on the system.
Ensure you are logged in with an administrator account and temporarily pause your antivirus software, as it may block the cleanup tools needed to fix the installer.
Clean Previous Installation Remnants
Use this method to completely remove hidden registry keys and leftover files from old installations that trigger the false 'newer version installed' error.
Standard uninstallation from the Control Panel often leaves behind residual registry entries. The new installer reads these traces and mistakenly assumes the software is still active.
Monitor the installation screen when it reaches 90%. Look for the specific error code, typically Windows Installer Error 1722, and close the setup wizard.
Download and run the official Acrobat Cleaner Tool. Accept the EULA, choose your specific product version, and click 'Clean Now' to remove leftover traces.
Click the Start menu, select the Power icon, and choose 'Restart' to ensure all cached files and temporary installation data are cleared from the system memory.
Right-click the newly downloaded installer file and select 'Run as administrator' to retry the setup process.
Resolve Windows Installer Conflicts
If cleaning the software files doesn't work, the Windows Installer service itself might require an update or repair.
Switch to WPS Office for a Hassle-Free PDF Editor
If you continue experiencing complex installation errors, try WPS Office. It provides a lightweight, highly compatible PDF reader and editor built directly into a comprehensive Office suite, eliminating massive installation files and registry conflicts.
- 1. Download the lightweight installer: Visit the WPS Official website and click the free download button to get the streamlined setup file.
- 2. Install quickly without errors: Run the WPS installer. Because it is highly optimized, it bypasses standard heavy installer conflicts and completes in minutes.
- 3. Open your PDF files: Launch WPS Office, click 'Open', and select your PDF file to start reading and editing immediately.
Frequently Asked Questions
What does Windows Installer Error 1722 mean during PDF installation?
Error 1722 is a general Windows Installer error indicating that a required action failed to execute. In this context, it usually means leftover registry keys or files from a previous installation are blocking the new setup from completing.
Why does the installer say a newer version is already installed when I uninstalled it?
Standard uninstallation via the Windows Control Panel often leaves behind residual registry entries. The new installer reads these leftover entries and mistakenly assumes the old software is still fully present on your system.
Can I open and edit PDF files safely without Adobe Acrobat?
Yes. Most modern web browsers have built-in basic PDF viewers. For advanced editing, annotating, and reading features, you can use lightweight and free alternatives like WPS Office's built-in PDF tool.
